Condensation between panes, fogged‑up glass and cold draughts creeping through old frames can make any home feel uncomfortable and wasteful on heating. We replace tired windows and doors with made‑to‑measure double glazing, fitted by FENSA‑registered installers, backed by a free home survey and a 10‑year guarantee.
You’ll get A‑rated 28mm argon‑filled units with low‑E glass, Q‑LON gaskets, multi‑point locks and tested hardware, in your choice of uPVC, timber or thermally broken aluminium, carefully specified to suit your budget and the character of your Cornwall home.
Quotes clearly separate supply, fitting, any provisional work and warranties, and you’ll receive full FENSA certification on completion, so you can prove standards for future buyers or insurers.
Read on to see options, example prices and what to expect from your double glazing installation.
Takeaways
- A‑rated low‑E, argon‑filled double glazing cuts heat loss and helps slash winter heating bills.
- High‑security multi‑point locks and PAS 24 or laminated glass options improve protection against forced entry.
- FENSA‑registered local installers provide certification, written like‑for‑like quotes in £, and compliance with UK Building Regulations.
- Clear survey‑to‑installation timelines, on‑site protection, and agreed snagging ensure work is finished correctly before final sign‑off.
- Manufacturer and installer warranties on frames, sealed units, and hardware give long‑term reassurance and defined repair responsibilities.
What Made-to-Measure Double Glazing Delivers for Your Home
Made-to-measure double glazing means each unit is built to the exact size of your existing frames, so the sealed units sit tight with no gaps to pack out with foam. A typical install is a 28mm argon-filled, A-rated unit with a low‑E coating and warm‑edge spacer, which cuts down draughts and keeps room temperatures more stable. Most customers see heating bills drop because the glass and Q‑LON gaskets are doing the work, not the boiler.
Because we size everything for your openings, we can fit proper security gear without compromise: multi-point locking, internally beaded frames and, where needed, laminated glass to slow down forced entry. Hinges and keeps are lined up and packed correctly on site, so the locks throw cleanly and stay in adjustment. You get smoother operation and fewer call-backs for dropped sashes or doors catching the cill.
A tight made-to-measure fit also means cleaner sightlines and less risk of blown units. Correctly packed frames and fully sealed edges reduce condensation on the inside pane and keep the argon gas where it should be, so the glass keeps its performance for longer. On completion you’ll get a FENSA certificate number and all the unit specs recorded, so if anything ever needs replacing in, say, Leeds or the surrounding area, it can be matched like-for-like.
How to Decide: Performance, Cost and Style for Custom Glazing
Choosing made-to-measure double glazing is about getting the balance right between performance, cost and appearance, not chasing the highest spec on every line.
Start with what matters most in your day-to-day use:
noise from the road, cold spots by the windows, security on the back doors, or getting more natural light into darker rooms. For example, a 28mm argon-filled, A-rated sealed unit with a low‑E coating will cut heat loss and draughts far more than an old 16mm air‑filled unit, but it may not be worth paying extra for if the room is rarely heated.
Cost isn’t just the price on the quote. Set a clear budget cap in £, then ask for:
- Supply and fit broken down
- Any extra for cills, trims, making-good plaster
- An estimate of energy savings over 5–10 years based on A-rated units
Bear in mind that better insulation and decent Q‑LON gaskets typically bring the heating bill down, so slightly higher upfront cost can have a realistic payback.
Style still matters, especially on period homes around Manchester. Check that the profile, colour and glazing bars suit the property from the street. You can keep the look traditional with flush casements and dummy sashes, but still have multi-point locking, internally beaded frames and a FENSA certificate number on completion for compliance and resale.
Before you decide, get at least two written quotes from local glaziers, like-for-like on:
- Glass spec (e.g. 28mm, argon-filled, low‑E, A-rated)
- Frame material and profile
- Hardware (handles, hinges, locking points)
- Warranty length on frames, glass and hardware
Be clear on what you won’t compromise on (security, FENSA certification, safety glass where needed), and only trim back on features where the benefit is marginal for your home.
| Priority | Question to Ask |
|---|---|
| Performance tradeoffs | Does this A-rated, 28mm unit justify the extra £ on my heating bills? |
| Aesthetic priorities | Does this frame profile and colour suit the house from the kerb? |
| Budget planning | What’s the total cost in £ over the window’s lifespan, including any likely repairs? |
Materials for Made-to-Measure Double Glazing: uPVC, Timber, Aluminium
Each frame material has its place. The right one depends on how much maintenance you’re prepared to do, the look you want, and your budget.
uPVC frames give you strong thermal performance for the money, especially with a 70mm profile and a 28mm argon‑filled, low‑E sealed unit. They don’t need painting, just a wash down now and then, and modern uPVC with welded corners and steel reinforcement holds up well in bad weather. For most homes in and around [LOCATION], uPVC is the practical choice if you want A-rated units, multi-point locking and internally beaded sashes at a sensible £/m².
Timber works best where the look really matters, especially on period properties or conservation-style homes. A good quality softwood or hardwood frame, factory primed and finished, can last decades if you keep on top of repainting every 5–7 years and checking seals. Pairing timber with 24–28mm argon-filled double glazing and a decent weatherseal (such as a Q-LON gasket) gives you solid insulation without losing the traditional sightlines.
Aluminium is the go‑to for slim sightlines and bigger panes, for example wide sliders or tall fixed lights. Modern thermally broken aluminium frames with a polyamide thermal break and 28mm A-rated units now insulate far better than old single-skin systems. They cost more than standard uPVC, but you gain strength, very low frame movement and a clean, contemporary look.
Before you decide, compare:
- U-values of the full window (frame and glass), not just the glass
- Finish options: foiled uPVC colours, timber stains/paints, powder‑coated aluminium (often RAL colours)
- Hardware: quality handles, friction stays and multi-point locks tested to PAS 24
- Paperwork: FENSA certificate on completion and clear written warranty on frames, sealed units and hardware
Match those details to how long you plan to stay in the property and how much ongoing maintenance you’re willing to do, and the right material usually becomes obvious.
Glass Options That Save Energy and Cut Noise (When to Choose Them)
Keeping your existing frames but upgrading the glass is usually the smartest way to cut heat loss and knock down traffic noise without a full window replacement.
For better insulation, we typically fit:
- A-rated, 28mm sealed units
- Low-E inner panes to reflect heat back into the room
- Argon-filled cavities for a clear U-value improvement over old air-filled units
That set-up keeps the room warmer, reduces draughts around the glass edge, and still lets plenty of natural light in.
If your home in Manchester is on a busy road or you’ve got a noisy garden side, we’ll specify:
- Laminated or acoustic glazing with a PVB/acoustic interlayer
- Different glass thicknesses in the unit to disrupt sound waves
This gives noticeably quieter rooms without needing thick, heavy shopfront-style glass.
Toughened safety glass is fitted where building regs or common sense say it’s needed – doors, low-level panes, bathrooms and so on. We can also combine low-E and acoustic glass in the same double or triple-glazed unit, so you get both better energy performance and improved sound reduction in one made-to-measure sealed unit.
How to Choose a Trusted Local Fitter : Measurement, Manufacture, Fitting
Getting the right fitter matters more than shaving £50 off a quote. You want someone who measures, makes and fits the units themselves or works closely with a trusted fabricator, so nothing is guessed on the day.
A decent fitter will carry out a full site survey before pricing anything. That means checking brickwork, lintels, existing frames, access for removal, and taking exact sizes for every opening down to the nearest millimetre. They should talk you through tolerances, how they’ll deal with out-of-square openings, and note things like cills, trickle vents and any existing draught issues.
Ask how their made-to-measure frames and 28mm sealed units are produced and checked. You want A-rated, argon-filled units with a low-E coating as standard, and frames with proper Q-LON gaskets and internally beaded sashes. Get clear answers on:
- Lead times from survey to fitting
- What’s included in the price (cills, trims, sealants, disposal of old frames)
- What factory quality checks are done before anything turns up on site
On the fitting day, they should explain who is actually doing the work, how long it will take, and how they’ll protect your home — dust sheets, careful removal of old frames, and making good any plaster reveals they disturb. Ask how they handle on-site adjustments if a frame needs packing out, and how they ensure the multi-point locks are aligned and closing smoothly before they leave.
Check reviews for repeated comments about turning up on time, tidiness, and how they deal with snagging, not just one good job. You should always get written confirmation of the agreed scope, total price in £, fitting dates, and who is responsible for any small issues picked up after installation.
A local FENSA-registered fitter in, say, Manchester should provide a FENSA certificate number on completion, plus any relevant hardware guarantees in writing. That way, if a unit fails or a handle loosens, you know exactly who to ring and what’s covered, instead of chasing a call centre.
Costs, Warranties and Long-Term Maintenance for Custom Double Glazing
Budgeting for made-to-measure double glazing isn’t just about the price per window. On a full job we’ll factor in a proper site survey, made-to-measure fabrication of the 70mm PVCu frames, installation labour, and any building work such as new cills, making good plaster, or adjusting reveals. These items typically add around 10–30% to a supply-only figure, so you want them itemised up front.
Ask for a written quote that splits out frames, 28mm argon-filled A-rated sealed units with low-E coating, installation, scaffolding (if needed) and any electrical or alarm sensor refits. We’ll also show what’s fixed price and what’s provisional, for example if lintels or rotten timbers are only confirmed once the old frames are out.
Check warranties line by line. A good installer will usually give:
- 10 years or more on PVCu frames and welded corners
- 5–10 years on sealed units against internal condensation
- 5 years on hardware such as handles, hinges and multi-point locking systems
Ask if the warranty can be transferred if you sell the property, and get that in writing. You should also receive a FENSA certificate with its registration number on completion, plus glass and hardware batch details.
Agree simple maintenance from day one: cleaning frames and glass with non-abrasive products, lubricating friction hinges and multi-point locks once a year, and checking Q-LON gaskets and drainage slots are clear so the units can shed water properly. If a sealed unit ever fails or gets damaged, a competent glazier can usually reglaze into the existing internally beaded frame without disturbing plaster or trims.
Keep all invoices, FENSA paperwork and any service or call-out records together. They make warranty claims straightforward and help prove the installation standard and product spec to surveyors or buyers later on, especially for made-to-measure units in places like Manchester where buyers expect proper certification.
Frequently Asked Questions
Can Made-To-Measure Glazing Increase My Home's Resale Value?
Yes, good quality made-to-measure glazing can add value, because buyers like the look and lower energy bills. Go for FENSA-registered installers, A-rated 28mm argon-filled units, multi-point locking and a written 10-year guarantee, and keep paperwork showing U-values and materials. That sort of proof usually helps your home sell quicker and for a better price.
How Long Does Custom Double Glazing Take to Manufacture and Install?
Manufacture and fitting usually take around 4–8 weeks altogether. Bespoke units are normally 2–6 weeks in the factory for survey, design sign‑off, ordering and making the A-rated, 28mm argon-filled units, then we book you in for installation within 1–2 weeks after that. Quick design approval and standard colours keep you toward the shorter end.
Are Bespoke Windows Available With Childproof or Pet-Safe Features?
Yes, we can supply made-to-measure windows with child-safety and pet-friendly options. You can have child restrictors so the sash only opens a set amount for ventilation, plus toughened or laminated A-rated glass and stronger frames to cope with pets. We’ll fit proper multi-point locking and can still keep the frames slim and tidy so they look smart as well as safe.
Can I Get Matching Shutters, Blinds, or Hardware With Custom Frames?
Yes, we can match shutters, blinds and hardware to your custom frames. We’ll go through colour-matched hinges and handles, blackout or light-filtering options, and coordinated finishes so everything ties in nicely. Your fitter will also advise on manual or motorised operation and child- or pet-safe fittings, and install it all to current regulations.
Do Fitted Units Require Special Insurance or Building Permits?
Yes, you’ll usually need to check both your home insurance and whether a permit’s needed, but it’s normally quite simple. Have a word with your insurer to confirm fitted units and any structural tweaks are covered, and ask your local planning office if you’re in a listed building or changing openings; always get their answers in writing before we start.