
Ultimate Double Glazed Door Prices | 2026 UK Cost Guide
By The Windows and Doors Team Your Local Glazing & Home Improvement Experts Reading Time: 6 minutes Quick Summary Key Standard:
Assure Registered · Peterborough & Cambridgeshire
We are an Assure-registered home improvement company Peterborough homeowners have relied on for years.
We supply and fit double glazing, uPVC windows and doors, composite doors, and conservatories across Peterborough and Cambridgeshire.
All installations carry a 10-year guarantee.
Free no-obligation quotes and no sales pressure.
Double glazing Peterborough homeowners can rely on starts with accreditation that is independently registered for each installation. We are Assure registered, government authorised, and every installation we complete is registered and issued with a full compliance certificate shortly after completion. That certificate is widely accepted by solicitors, mortgage lenders, and insurers, formal confirmation that the work complies with Building Regulations, not just a promise that it was.
We register every installation under the Assure scheme. This confirms your windows and doors Cambridge project meets precise technical standards.
Every replacement fulfills Part L rules for thermal performance. This removes the need for separate council inspections on completion.
The British Fenestration Rating Council assesses the energy performance of windows and doors on the Window Energy Rating scale, running from A++ down to E. This provides a recognised way to compare product performance. Products we supply can be BFRC rated where applicable, giving you third-party confirmation of thermal efficiency rather than a manufacturer’s self-declared figure.
Through Glass & Glazing Federation Insurance (GGFi), every customer receives an independent insurance-backed guarantee underwritten by a third-party insurer. Your guarantee remains valid regardless of the installer's future trading status. Both your deposit and completed work are protected from the moment you place your order.
Every installation we carry out is backed by our 10-year guarantee, covering PVC-U and aluminium window and door frames against faulty manufacture, sealed units against failure, and all installation work from the date of completion. Your guarantee is transferable to a new owner subject to our approval — making it a genuine asset when selling your home.
Click any product to see styles and specifications.
We fit high quality uPVC windows in casement, tilt-and-turn, sash windows, bay, and bow styles. All frames are reinforced and guaranteed not to warp or discolour for the duration of your guarantee period.
Every window includes A-rated energy efficient glazing as standard. We install replacement windows for homes and commercial properties across Peterborough.
A new front door changes the look and security of your home straight away.
We install composite doors with a solid timber core and glass-reinforced plastic skin. They are more thermally efficient than standard doors and harder to force open.
Our uPVC doors come in a wide range of colours. All include multi-point locking systems as standard.
We design and build conservatories in Victorian, Edwardian, lean-to, and gable-end styles. We also fit solid warm conservatory roofs.
Our solid conservatory roofs are fully insulated and can achieve U-values that meet or exceed current UK building regulations. We will confirm the exact specification for your chosen system at survey.
We supply and install roof lanterns for homes across Peterborough and Cambridgeshire, creating bright, open spaces with year-round natural light. Sleek, modern profiles and high-performance glazing help improve comfort while enhancing the look of your extension or flat roof.
In many cases we can design a made-to-measure roof lantern to suit your existing opening rather than altering the whole roof structure. This keeps disruption to a minimum and helps keep the overall project cost down for you.
Seven reasons Peterborough homeowners choose us over larger national companies.
Assure-registered with compliance certificates issued shortly after completion
10-year guarantee on installations, subject to terms and conditions
Free no-obligation survey and written quote with zero sales pressure
Verified 5-star reviews from homeowners across Peterborough
BFRC-rated energy efficient glazing supplied and fitted as standard on every job
Competitive pricing with no hidden costs and fully itemised written quotes
We remove your old frames and leave the site completely clean and tidy
Free survey, fully itemised written quote, and no pressure to proceed.
Sliding patio doors suit compact spaces well. Bi folding doors give you a wide, unobstructed opening and connect your living space to the garden with ease.
We also supply aluminium bi-folding doors with slim frames that let in more natural light.
We keep the process transparent at every stage. From your first enquiry through to your completed installation, here is exactly what to expect when you work with us.
Call, email, or fill in our online form. We respond promptly and at a pace that works for you.
We provide a detailed, itemised written quote so you know exactly what is included before committing to anything.
Once you accept the quote, we visit your property to take precise measurements and confirm every detail of the specification.
We place the order with our manufacturers. Every product is made to the exact measurements taken at your survey.
Our own in-house team carries out the installation. An Assure compliance certificate is issued on completion.


Double glazing uses two glass panes with an argon gas layer sealed between them. This keeps heat in during winter and blocks excess heat in summer.
Replacing single-glazed windows with double glazing Peterborough properties have benefited from can significantly reduce heat loss and lower your energy bills. The actual saving depends on your property type and existing insulation.
All our double glazed Peterborough units meet current UK building regulations for thermal performance, security, and weatherproofing.
We are specialist double glazing suppliers Cambridgeshire homeowners trust. Our windows door and glazing range covers all popular home improvements at competitive prices.
Call or email us for a quote. We visit your property, measure up, and give you a clear itemised price with no hidden costs.
As your local Peterborough home improvement company, we are with you from first call to finished installation.
We serve homeowners across Peterborough and the surrounding region, providing double glazing Peterborough properties rely on for security, warmth, and lasting performance.
Every double glazing Peterborough installation we complete leaves site Assure certified, meeting Part L, Part O, and Part Q as a matter of course.
Visit Us at Telford Way Industrial Estate, Kettering
Your questions answered about double glazing in Peterborough and Cambridgeshire.
Prices vary depending on size, style, and the number of units required. We provide a fully itemised free quote so you know exactly what to expect, with no hidden extras. Contact us today or use our online quote tool to get started.
Yes, completely. Assure and FENSA both operate under the same Government Competent Person Scheme. The Assure compliance certificate issued on completion carries the same legal weight as a FENSA certificate. Solicitors and mortgage lenders accept it without question. FENSA is simply older and more widely known by homeowners.
In most cases, no. Replacing like-for-like windows and doors does not usually need planning permission. If your home is listed or sits within a conservation area, check with Peterborough City Council before work begins. We handle all building regulations compliance and issue your Assure certificate on completion.
Triple glazing gives better insulation and soundproofing than double glazing. It suits homes on busy roads or those wanting the highest energy savings. For most Peterborough homes, A-rated double glazing performs very well at a lower cost. We will go through both options with you at your free survey.
We cover Peterborough and the surrounding Cambridgeshire area. Our teams work regularly in Stamford, Market Deeping, Huntingdon, Oundle, Yaxley, Sawtry, Spalding, Bourne, and Kettering. Contact us to confirm we cover your postcode.
A double glazing Peterborough installation typically begins with a free home survey to measure existing openings and confirm the specification. Once you accept the quote, we order the units to measure, fit them using our own in-house team, and issue an Assure compliance certificate on completion.
Most standard window replacements take one day. Larger projects covering multiple rooms or door combinations may take two days.
Quality double glazing Peterborough installers fit should perform reliably for 20 years or more. The sealed unit is the component most likely to fail first, typically showing as condensation between the panes. When this happens the unit can usually be replaced without disturbing the frame.
Every installation we complete carries a 10-year guarantee covering the frame, sealed unit, hardware, and all fitting work.
Just honest advice and a written quote from our family-run team.

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