Condensation between panes and misted glass can make your home feel cold, uncared for and expensive to heat. We solve that by supplying and installing energy‑efficient double glazing, fitted by FENSA‑registered installers, starting with a free home survey and backed by a 10‑year guarantee.
Your surveyor will take precise measurements, check existing frames and cills, assess moisture and ventilation, and confirm that plaster, tiles and clearances allow your new made‑to‑measure units to fit perfectly.
We log access and scaffold needs, security and acoustic requirements, and any issues with existing sashes, hardware or rotten timber, then use this to prepare an itemised £ quote, clear installation brief, risk assessment and FENSA compliance plan for your property in Manchester.
Read on to see how installation works, how your certification is handled, and what’s covered under your warranty.
Takeaways
- Free on-site survey with laser and level checks ensures accurately measured, tight‑fitting 28mm argon-filled replacement units.
- Detailed written quote in £ helps you compare options by clearly listing glass type, gas fill, hardware and disposal.
- A-rated, low‑E 28mm argon-filled units improve insulation and can lower heating bills versus older double glazing.
- Laminated or thicker asymmetric glass upgrades boost security and help cut outside noise in busy or exposed locations.
- Certified installer registration (e.g. FENSA), installation timings and written warranty give assurance on compliance and aftercare.
What a Free Double Glazing Survey Includes and Why It Matters
Before any work starts, a free survey gives you a straight, detailed look at the condition of your existing windows and doors, so you know exactly what needs doing and what can stay as it is. We check frame condition, measure for made-to-measure 28mm argon-filled A-rated units, and note access, scaffolding needs and any restrictions that could affect fitting.
We check for moisture with a meter around sills, heads and cills to pick up early signs of rot, failed seals and cold spots that cause condensation. That tells us if you just need new sealed units, or if the timber or uPVC frames are past their best and a full replacement with internally beaded frames and Q-LON gaskets is the better option.
You get a clear idea of remaining lifespan based on the state of the hinges, locks, seals and drainage, and how the windows are standing up to local weather in Leeds. We explain what performance you can expect from new low‑E double glazing (U-values, draught reduction, security from multi-point locking), what’s covered under the warranty, and what falls outside it.
The survey sets out realistic timings and costs in £, so you can decide if you want to phase work, just change failed units, or replace full frames. It also means the installation runs to plan, with the right glass, fixings and trims ordered first time, and your FENSA certificate issued correctly on completion.
Survey Checklist: Windows, Frames and Site Constraints
Your surveyor will run through a clear checklist on every window. They’ll record the type, exact brick-to-brick sizes, frame material, and the condition of sashes, cills and surrounding brickwork. Any site constraints that could affect fitting or safe access are logged straight away.
You’ll be asked about existing issues such as condensation between panes, draughts, soft or rotten timber, warped uPVC, sticking sashes, and signs of poor drainage below the cill. The surveyor will check fixing points in the masonry, clearance for removing the old sashes, and if scaffold, a tower, or a hoist is required for safe installation.
They’ll confirm which way each opener swings, handle positions, cill heights, and any nearby services that limit installation, such as gas pipes, cables, or extractor vents. Ventilation routes are checked so we can allow for trickle vents to current Building Regulations, and acoustic glass or extra seals are noted for noise‑sensitive rooms near busy roads in and around Manchester.
All details go into the installation brief and risk assessment, including glass spec (for example A‑rated, 28mm argon‑filled low‑E units), hardware (multi‑point locking, internally beaded sashes, Q‑LON gaskets), and any extras agreed. This is what your fitter works from on the day and it’s what your written, itemised £ quote and FENSA certificate record are based on.
Types of Double Glazing: Energy and Noise Performance
Glass type and construction play a major role in both energy efficiency and noise control. Pane thickness, for example, influences sound reduction as well as U‑values, while inert gas fills such as argon or krypton can further improve thermal performance without altering the appearance of the window. The frame itself is just as important: weak thermal breaks or poor materials can undermine even the best glazing. The sections that follow unpack these elements in more detail and show how they work together in practice.
Glass Thickness Options
Glass thickness isn’t just a technical note on the order sheet. It affects how well the sealed unit keeps heat in, how much road noise you hear, and how heavy the sash ends up for the hinges and hardware.
On a standard 28mm A-rated, argon-filled, low-E double-glazed unit, we’ll match glass thickness and cavity size to what you actually need, not just what’s cheapest on the price list. Thinner panes keep weight and cost down, thicker panes add stiffness and cut more noise, and mixing thicknesses helps break up different sound frequencies.
Typical options we fit:
- 4mm / 4mm in a 28mm unit:
Basic thermal performance with low-E and argon, fine for quieter streets, keeps sashes lighter and easier to operate.
- 6mm / 4mm or 6mm / 6mm:
Noticeably better noise reduction against traffic and neighbours, adds a bit of extra weight so we pair it with decent hinges and multi-point locking gear.
- Laminated or asymmetric set-ups (for example 6.4mm laminated outside, 4mm inside):
Much better sound control and added security, as the laminated outer pane is harder to break and holds together under impact.
On survey, we check frame type, existing hardware, and opening sizes so the glass spec doesn’t overload the hinges or clash with internal beading. All units are made-to-measure and supplied with a FENSA certificate number on completion.
Gas Fills Explained
Once you’ve picked your glass thickness for weight, security and noise, the gas in the sealed unit is the next thing that affects performance. Most double-glazed units we fit are either air-filled or argon-filled, with krypton used on some specialist jobs.
On a standard 28mm A-rated sealed unit with low‑E coating, argon is usually the sensible upgrade. It’s cheap, it slows down heat loss through convection, and it will typically bring the U‑value down without changing how the window is fitted or glazed. For most homes in and around Manchester, argon-filled units give a clear step up from plain air without blowing the budget.
Krypton gas insulates better than argon in very narrow gaps, so it’s mainly used on slimline units or heritage frames where you can’t get a full 28mm cavity. It costs a fair bit more, so we only recommend it where space is tight and you still need modern U‑values.
For noise, gas type makes less difference than people think. You get far more sound reduction by using:
- The right cavity width in the sealed unit
- Laminated acoustic glass
- Good Q‑LON gaskets and proper toe-and-heeling on opening sashes
On survey, we’ll confirm the gas fill, cavity size and spacer type for each made-to-measure unit, and your FENSA certificate will list the spec we’ve actually installed.
Frame Thermal Performance
The sealed unit does a lot of the work, but the frame is what decides how much of that performance you actually feel in the room. A good frame limits cold bridging round the edges and controls ventilation so you don’t get condensation running down the reveals.
We normally match A-rated, 28mm argon-filled, low-E units with frames that are built to the same standard:
- Thermally broken aluminium: very rigid, slim sightlines, and low thermal bridging if the thermal break is correctly specified and installed.
- uPVC or timber with insulated cores: naturally warmer to the touch, easier to draught-proof with continuous Q-LON gaskets and tight corner welds or joints.
- Seals and drainage: proper drainage channels to take water out, with baffles so you don’t end up with a cold air path straight into the room.
Ask to see the whole-window U-value, not just the glass figure. Any decent installer in Manchester should be able to show you test data and explain how the frame, 28mm unit, warm-edge spacer and gaskets all work together, then back it up with a FENSA certificate number on completion.
Double Glazing Frame Materials: uPVC vs Timber vs Aluminium
You’re usually choosing between uPVC, timber and aluminium frames, and each behaves differently once it’s in the brickwork and has a winter or two on it.
uPVC is the go-to on most jobs because it’s low-maintenance and keeps heat in well when paired with a 28mm argon-filled, low‑E A-rated unit. It doesn’t rot or flake, and aside from washing it down and a quick check of the Q‑LON gaskets and hinges, there’s not much to do. It’s also the most cost-effective option on most properties in the £4,000–£10,000 range for a full house, though the profiles can look a bit bulkier than aluminium on big openings. Most modern uPVC we fit is fully recyclable and comes internally beaded with multi-point locking as standard.
Timber gives you the best match for period properties and conservation work, especially with slimline double glazing and putty‑line profiles. Properly treated hardwood or engineered softwood can last decades, but only if it’s painted or stained on a regular cycle to stop water getting in and causing rot or warping. It insulates very well with a good 24–28mm double-glazed unit, but you need to budget both for the higher initial cost and for ongoing maintenance every 5–7 years.
Aluminium is strong, slim and ideal for larger panes, bifolds and modern extensions where you want more glass and less frame. Thermal‑break profiles and 28mm argon‑filled units stop the frames acting as a cold bridge, so you still hit good U‑values that meet current Building Regulations in Manchester and across the North West. It costs more up front than uPVC, but the powder‑coated finish is very hard-wearing and, apart from cleaning and hinge/latch lubrication, it needs little attention. For all three frame types you’ll get a FENSA certificate number on completion, showing the installation meets UK standards.
Matching Windows & Doors to Style, Budget and Performance
Start by deciding what each room actually needs. A front bay on a period house might need run-through horns and woodgrain foiled uPVC to look right from the street. A rear sunroom usually wants as much glass as possible in a slim aluminium frame. Upstairs bedrooms tend to suit low‑maintenance uPVC with easy-clean hinges, while a full renovation might push you towards A-rated, 28mm argon-filled units with low‑E glass and trickle vents to hit your U-values.
Different materials suit different jobs. Timber or foiled uPVC usually match older properties best. Slim aluminium works well for big spans and modern patio doors, and alu-clad or composite frames can give you better thermal performance without losing a tidy external finish. Keep colours, handle styles and thresholds consistent across each elevation so the whole face of the house looks planned, not pieced together.
Set a few hard targets before you start getting quotes: U-value, sightline width, and how much maintenance you’re prepared to do. Then ask each glazier what they’re actually fitting, not just “A-rated windows”. On a proper quote around Manchester you should see line items like 28mm sealed units, argon fill, low‑iron glass to the south elevation, Q‑LON gaskets and multi-point locking with internal beading.
Quick checklist before you sign off:
- Confirm the window energy rating, glass spec (e.g. 28mm argon-filled, low‑E), and expected lifespan of hinges and locks
- Check colour and finish options against the age of the property and any planning restrictions
- Compare the full price, including cills, trickle vents, upgraded handles, restrictors and any disposal costs
- Make sure you’ll get a FENSA certificate number and written guarantees for frames, glass and hardware on completion
Installation Steps: Measurement to Final Sign-Off
If you want the job done right, the installation needs to follow a set order so nothing is missed and every stage is written down. It starts with a free site survey where we take accurate measurements, check levels with a spirit level and laser, and allow for plaster, tiles and any trims so the 28mm argon‑filled, low‑E units actually fit as they should.
From that, you get a written specification with frame profiles, opening styles, glass type, colour and hardware, plus a clear timetable so you know when we’re on site and when the job should be finished. Materials are ordered made‑to‑measure from UK fabricators, so you’re not paying for packing pieces and fillers to cover poor sizing.
On installation day we protect carpets, flooring and nearby furniture, then remove the old frames carefully so we don’t damage brickwork or internal reveals. New uPVC or aluminium frames are set level and plumb, packed correctly, then fixed into the masonry with the right fixing pattern for the size and weight of the window or door.
Gaps are insulated to cut down on cold spots and draughts, then we seal inside and out with the right grade of silicone and fit Q‑LON gaskets where specified. Every sash, handle and multi‑point lock is checked for smooth operation and compression, and any snags are listed and put right before we leave.
You get a documented final sign‑off, including the FENSA certificate number on completion, so you’ve got proof the installation meets current Building Regulations in, for example, Manchester and is recorded properly for future sale of the property. The job is finished only when you’ve gone through that paperwork with us and are happy to sign.
Dealing With Tricky Cases: Structural Changes & Planning Rules
Structural alterations and planning rules can quickly turn a straightforward glazing upgrade into a complex project. If your plans touch load‑bearing walls, existing openings or the external appearance of your home, you’ll need robust structural advice and clarity on planning consent before commissioning bespoke frames. Properties in conservation areas or with listed status bring additional heritage requirements and closer scrutiny from local authorities. The following sections unpack how to navigate these rules, manage risk and keep your project compliant from the outset.
Assessing Structural Impact
Structural checks before we touch the frames
Swapping old frames for new A-rated, 28mm argon-filled units sounds simple, but the structure around them needs checking first. If the frame sits in a load-bearing wall, we confirm what’s carrying the brickwork above and how much of the opening is changing before anything is removed.
We start with a visual survey around each opening. That means:
- checking for cracks, dropped sills or signs of foundation movement
- noting any previous lintel repairs or cement patching
- measuring the existing opening against the proposed made-to-measure frame size
If a lintel is being altered or replaced, we specify temporary props, including bar size, spacing and how long they stay in. We also record what’s already there: steel or concrete lintels, cavity closers, wall make-up, and any odd loading such as a heavy gable or chimney bearing onto the span.
Where the structure needs upgrading, we set out the corrective work in writing:
- new concrete or steel lintels to current standards
- extra reinforcement over wide openings
- localised underpinning if there is proven settlement
- brick or block repairs tied back properly, not just filled with mortar
For anything unclear, we bring in a structural engineer and work to their calculations. We keep photos and notes for your records and FENSA certificate, and our fitters follow the agreed method on site, so the new internally beaded frames and multi-point locking gear sit in sound, stable openings.
Understanding Planning Permission
Once you're happy the openings will take new frames, you need to sort planning and building control. Any change to the structure or the look of the front elevation can affect your permission, especially if you’re changing frame colour, altering opening sizes, or fitting new 28mm argon-filled units where single glazing was before.
Check if you need:
- full planning consent, or
- just building regulations approval for items like A-rated glass, low-E coatings and safety glazing in critical areas.
Straight swaps of old frames for made-to-measure uPVC or aluminium with like-for-like apertures are often classed as permitted development, but not always. Listed buildings, conservation areas and some flats in places like central Manchester can have limits on permitted development, and you may need separate consent before taking out structural brickwork or stone mullions.
Speak to your local planning department or use their online guidance, and ask for pre-application advice if it’s not clear. Keep copies of surveys, structural notes and any approvals, and make sure your glazier installs exactly to the agreed spec – for example, internally beaded frames, multi-point locking and toughened glass where it’s required.
If planning or building control sign-off is needed, build the application time into your schedule. It’s cheaper to wait for a decision than to be told to put frames back in after you’ve paid for the installation.
Working With Conservation Areas
In a conservation area you’ll have tighter rules on frame profiles, colours and anything that alters the look of the building. Check the council’s design guide and speak to the conservation officer before you get too far into the job – they’ll tell you early on if they’re likely to insist on timber-replica frames, traditional ironmongery or keeping original stone mullions in place.
We usually pair a heritage consultant with a surveyor so the drawings line up with what planning will accept. That means measuring up for made-to-measure 28mm argon-filled, low‑E A-rated units, then matching sightlines, glazing bars and opening styles to the originals as closely as possible.
You’ll often be asked to justify any change against the local character of the street. It helps if you go in with:
- Section drawings showing where existing features are retained or carefully replaced.
- Profile details for frames, cills and glazing bars that mirror the originals.
- A clear note on safety and efficiency gains: multi-point locking, internally beaded sashes, Q‑LON gaskets and improved draught reduction.
Ask the officer to confirm in writing what they class as “minor works” and what needs full listed-building consent. Get every agreement and permission in place before you order any units – it avoids costly changes once the glass is in production.
Safety, Certification and Warranty Coverage Explained
Safety, certification and warranty are what protect you long after the van has left your drive, so it’s worth checking the details before you sign anything. Ask to see proof of recognised certifications, for example BFRC A-rated 28mm argon‑filled low‑E units, Secured by Design multi‑point locking, and CE/UKCA marking on frames and glass. On completion, you should receive a FENSA (or similar) certificate with the registration number clearly shown.
Make sure your installer can show:
- Public liability insurance
- Up‑to‑date health and safety training
- Evidence of recent safety audits or site inspections
Confirm exactly what the warranty covers on frames, sealed units, hardware and installation, how long each part is covered, and if it can be transferred if you sell the property. Ask specifically about common exclusions such as:
- Seal failure outside the stated period
- Glass breakage not caused by a fault
- Misuse or lack of basic maintenance
Get any promised remedies in writing – for example, how replacement of a failed sealed unit is handled and within what timeframe. Keep all paperwork together: FENSA certificate, BFRC ratings, guarantees, and invoices. Those records are what back you up if you ever need to make a claim on your made‑to‑measure double glazing in Leeds.
Double Glazing Costs, Finance and Payment Options
Double glazing costs vary with frame material, glass spec and how awkward the install is. A straight swap in uPVC with a 28mm A‑rated argon‑filled low‑E unit will sit at the lower end of the scale; made‑to‑measure aluminium or timber, bay windows, new lintels or rotten sills push the price up. Always get at least three written quotes for your place in Leeds, and make sure each one breaks down:
- Frame type and colour
- Glass spec (eg. 28mm A‑rated argon low‑E, toughened or laminated where needed)
- Ironmongery and security (multi‑point locking, internally beaded)
- Extras like trickle vents, new cills, trims and making good
Check if the price includes removal and disposal of old frames and glass, internal and external finishing, and FENSA certification. Ask the glazier to confirm how long the installation and frame/ sealed unit warranties run for, and get the warranty and FENSA certificate number in writing on completion.
If you need to spread the cost, ask about finance before you sign anything. Get the monthly payment, term length, total repayable in £, interest rate (APR) and any early settlement fees written down. Compare what the installer offers against a personal loan or a 0% purchase credit card, not just the headline monthly figure.
Before work starts, agree:
- Deposit amount and when the balance is due (eg. on FENSA sign‑off)
- A written payment or amortisation schedule
- That the product and installation warranties stay valid if you pay by finance, loan or credit card
Preparing for Installation: What to Expect on the Day
On installation day, your glazing team will agree an arrival window and let you know if anything changes. Before they begin, it helps to clear direct access to the work areas and move any delicate items out of the way. The installers will then protect your floors, remove the old frames and glass, fit the new units, and check everything operates and seals correctly before tidying up. The following sections explain each stage in more detail and outline what you can do to help things run smoothly.
Arrival And Timing
Our fitters work to a booked time slot and ring ahead if traffic puts them behind, so you’re not waiting around. On arrival we’ll show ID, run through which windows and doors are being changed, and give a realistic timescale for the A‑rated, 28mm argon‑filled units going in that day.
We’ll ask you to confirm access routes, parking, and any areas with fragile items or alarm sensors. You just need to stay reachable in case we hit anything hidden in the walls or reveals that needs a quick decision.
At the start there’s a short site check and safety briefing so everyone knows where tools, cables and glass are going. We’ll agree the order of rooms, note where we’re using internally beaded frames and multi‑point locking, and flag any small changes needed on site.
Before we leave, we:
- Clear and bag old frames, glass and packaging for disposal.
- Check each opener, lock and Q‑LON gasket for smooth closing and draught‑proofing.
- Seal inside and out, wipe down the frames and glass, and walk you through the work.
- Confirm how and when you’ll receive your FENSA certificate number.
If anything slows the job – bad weather, extra making good – we’ll explain it, adjust the plan, and agree the next visit there and then, so you can plan the rest of your day around us.
Home Preparation Steps
Now that we’ve run through the schedule and checked access, here’s how to get your home ready so fitting runs smoothly.
Clear space around every window and door we’re working on. Move small furniture out of the way and cover larger items with dust sheets. It keeps plaster dust and sealant off your things and gives us enough room to handle 28mm sealed units safely.
Put valuables in a cupboard or another room and keep hallways clear. We’ll be carrying A-rated, argon-filled units through the house, so clear exit routes help prevent accidental knocks.
Sort pets into a quiet room or arrange for them to be out for the day. If you’ve got pet doors, label which ones stay and which are being removed or replaced, so the glazier doesn’t guess.
Let the family know which rooms will be out of action and plan naps or play in a different space. Pick a safe area away from the work zone so children aren’t near tools, glass, or low-E coated units waiting to be fitted.
If we’ve agreed to start while you’re out, check external locks work properly and leave keys or a keypad code as arranged. Make sure outside lights are working so we can see entry points clearly during early or late appointments in Manchester.
Ask where offcuts and old frames will go and confirm if we’re taking everything away. Keep our contact number handy in case you need to update access arrangements or check progress before we sign off your FENSA certificate number at completion.
What Crew Will Do
The crew will keep out of your way, but the first job is always protection. We’ll cover floors and nearby furniture with dust sheets, then do a quick check of sizes, access, and safe working areas before any cutting or removal starts.
You’ll see clear roles on site so nothing gets missed:
- Lead fitter strips out the old frames, fits the new made-to-measure units, packs and fixes them square, then seals the openings with low-shrink sealant.
- Assistant sets up tools, manages debris and waste, and keeps temporary protection in place so there’s no damage to your décor.
- Quality inspector checks frame alignment, 28mm argon-filled A-rated sealed units, Q-LON gaskets, and multi-point locking all operate correctly.
We’ll confirm final opening sizes with you before fixing off, and note any changes to the original measure on your job sheet. Expect us to turn up on time, run a short safety brief, keep the area tidy, and leave you with a clean handover, FENSA certificate number, and basic care advice for your new double glazing in Manchester.
Frequently Asked Questions
Do You Offer Commercial or Multi-Unit Building Installations?
Yes, we handle commercial work and multi‑unit blocks as well as single homes. We’ll survey the whole site, plan phased installs to keep disruption down, sort any permits, and make sure everything meets building regs, FENSA and energy standards with A-rated, 28mm argon-filled units. You’ll get clear timelines, fixed-price quotes, 10-year guarantees and ongoing support after handover.
Can You Match Existing Glass Patterns or Leaded Designs?
Yes, we can usually match existing glass patterns and leaded designs very closely. We’ll take a detailed template on site, then replicate the leadwork, colours and even mouth-blown textures where needed, producing samples for you to approve. Everything is made into modern 24–28mm sealed units with A-rated glass and argon fill, so it looks original but performs like new.
Is Emergency Window or Door Replacement Available Outside Business Hours?
Yes, we do emergency call-outs outside normal hours. We’ll board up straightaway to make it safe and weather-tight, then arrange a full window or door replacement at a time that suits you, with clear pricing before we start. All work’s to FENSA standards, with secure multi-point locking and A-rated glass where required.
Do You Provide Bespoke Colours or Textured Finishes Beyond Standard Ranges?
Yes, we can do bespoke colours and textured finishes beyond the standard options. We can match RAL colours, offer textured laminates and special powder-coated finishes, then show you samples so you can see and feel them. We’ll confirm durability, cleaning, lead times, cost, and give technical advice so it suits your frame material and exposure, all backed by our usual warranty.
Can You Arrange Temporary Security Measures During Long Installs?
Yes, we can put temporary security in place during a long install. We’ll board up any open areas, fit temporary locks where needed and can supply portable alarms, all set up before we start and removed at the end. We’ll also explain who holds keys or codes and give you a direct number if there’s ever an issue.