Every installation starts with a free home survey. We measure your openings precisely, assess the frame condition, and discuss your requirements — energy performance, noise reduction, security glass, or simply replacing failed units.
We manufacture your sealed units at our Bristol facility to the exact dimensions needed. Standard sizes typically dispatch within the same working week. For installations, our fitting team works cleanly and efficiently — most single-window replacements take under two hours, and a full house of windows can be completed in a single day.
All installations include: precision measurement, removal and disposal of old glass, fitting of new sealed units, bead replacement where needed, silicone resealing, and a final check for operation and weathertightness. We leave your home as we found it.
We handle everything from the initial survey through to installation, finishing and cleanup. Every job is backed by our FENSA registration and 10-year guarantee on sealed units.
Expert Glazing, Done Right
We're not a national call centre. We're local glaziers who take pride in every job.
FENSA Registered
Every installation is FENSA certified — Building Regulations compliance handled automatically.
10-Year Guarantee
All sealed units come with a comprehensive 10-year guarantee on seal integrity and argon retention.
200+ 5-Star Reviews
Trusted by Bristol homeowners — over 200 verified 5-star reviews from local customers.
Same-Week Service
Standard sealed units manufactured and ready for installation within the same working week.
Bristol Based
Local team based in Bristol — shorter response times, lower travel costs, and knowledge of local property types.
Free Survey & Quote
No-obligation home survey with a detailed written quote within 24 hours. No hidden costs.
If you're noticing any of these issues, it may be time to replace your sealed units or upgrade your glazing.
Signs Your Double Glazing Needs Attention
Catching problems early saves money and prevents bigger issues. Here are the telltale signs your windows need professional attention.
Misting Between Panes
Visible fogging or condensation inside the sealed cavity (not on the room-side surface) means the edge seal has failed and moisture has entered. The argon gas is also gone — the unit's U-value has dropped from 1.4 to ~2.8 W/m²K. Replace, don't repair.
Cold Drafts Near Windows
Cold zones near a closed window usually mean a failed perimeter seal between glass and frame, or a degraded gasket. Easy to fix on most frames without replacing the glass — but worth a survey to confirm it's not also an IGU failure.
Sudden Spike in Heating Bills
If your bill jumped without weather or tariff changes, check whether sealed units have failed. A single misted unit on a 4-bed home typically adds £100-200/year to heating cost via lost insulation.
Visible Cracks or Chips
Even hairline edge cracks let moisture in and trigger seal failure within months. Cracks in safety-glazing locations (low-level, doors, bathrooms) are a Building Regs Document N compliance issue — replace promptly with BS EN 12150 toughened equivalent.
Heavy Room-Side Condensation
Streams of water on the inside of the glass on cold mornings usually mean the room-side glass surface is too cold (poor U-value glazing) combined with high indoor humidity. A-rated low-E units (U=1.1) typically eliminate this; the condensation calculator identifies the cause.
Sticky or Misaligned Sashes
Sashes that catch, jam, or won't lock are usually hinges, friction stays, or sash weights that have worn — often fixable without replacing the glass. But check the frame for rot or PVCu reinforcement failure while diagnosing; bad frames need replacement before glass.
⚠️ Noticed any of these issues? Do not wait - small problems become expensive repairs. Get a free assessment today.
From first contact to finished windows — here's what to expect.
How Our Service Works
From first contact to finished job, we make the whole process straightforward and stress-free.
Step 1:
Book Your Free Survey
Contact us to arrange a convenient time. Our surveyor visits your home, measures every opening, and discusses your requirements — no pressure, no obligation.
Step 2:
Receive Your Quote
Within 24 hours of the survey you'll receive a detailed written quote covering all units, installation labour, and VAT. No hidden extras.
Step 3:
Manufacturing
Your sealed units are made to measure at our Bristol factory. Standard configurations dispatch same week; specialist glass may take 5-7 working days.
Step 4:
Professional Installation
Our FENSA registered fitting team installs your new glazing. Single windows take under 2 hours. A full house is typically completed in one day.
Step 5:
Sign-Off & Guarantee
We walk through every window with you, check operation and seals, issue your FENSA certificate, and activate your 10-year sealed unit guarantee.
Real Results
See the Difference
Drag the slider to compare before and after our glazing work. Real jobs, real results.
We recently replaced an ageing wooden bathroom window in Bishopston with a modern uPVC window fitted with Stippolyte privacy glass, improving insulation and moisture resistance.
Double Glazing Installation — Knowle Bristol
Double Glazing Installation — Bristol
See Our Work
Recent Projects
Real jobs completed for Bristol homeowners. Quality you can see.
Transparent Pricing
Typical Cost Guide
Why are we often cheaper than the big companies?
No sales teams, no showrooms, no franchise fees. Just experienced glaziers doing quality work at fair prices. We always try to repair before replace - saving you money.
Common questions about our installation service.
Frequently Asked Questions
Everything you need to know about our double glazing repair and replacement services across the South West.
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A single window replacement takes around 1-2 hours. A full house (6-10 windows) is usually completed within one working day. Larger projects may take 2 days.
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Yes — someone over 18 needs to be present so our surveyor can access all windows, take measurements, and discuss your requirements. Surveys typically take 30-45 minutes.
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Yes. Removal and responsible disposal of all old glazing is included in the installation price. We also clean up all debris and packaging before we leave.
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All sealed units come with a 10-year guarantee covering seal integrity and argon gas retention. The installation workmanship is guaranteed for 5 years. You also receive a FENSA certificate confirming Building Regulations compliance.
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We replace the glass units, not the frames. Our sealed units are manufactured to fit precisely within your existing uPVC, aluminium, or timber frames. If your frames are damaged, we can advise on the best approach.
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Yes, though listed buildings may require specific glass types to meet conservation requirements. We can advise during the survey and source appropriate heritage glass where needed.
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We install across Bristol and the surrounding areas — from Clifton to Fishponds, Keynsham to Thornbury. Free survey and quote within our coverage area.
Areas We Cover
- Clifton
- Redland
- Westbury-on-Trym
- Henleaze
- Bishopston
- Stoke Bishop
- Cotham
- St Andrews
- Fishponds
- Horfield
- Southville
- Bedminster
- Keynsham
- Portishead
- Clevedon
- Nailsea
- Long Ashton
- Thornbury
- Bradley Stoke
- Filton
Not sure if we cover your area? Just ask! We often travel further for larger jobs.
Expert Knowledge
How Our Installation Service Works
Standard sealed unit sizes are manufactured at our Bristol factory and dispatched within the same working week. Most installation appointments are available within 5 working days of your survey.
Ready to Upgrade Your Windows?
Get your free, no-obligation quote today. Most quotes delivered within 24 hours.
Prefer to talk? Call us on 0117 330 3057