White uPVC windows and door with gold handles and leaded glazing

Energy-Efficient Windows and Doors Installation

Reduce energy loss, improve comfort, and secure your home with modern window and door replacements.

Old windows and doors are one of the biggest culprits for heat loss in UK homes. At Northern Retrofit, we install high-performance, energy-efficient alternatives that lock in warmth and enhance security.

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4.6

89+ Reviews

White uPVC windows and door with gold handles and leaded glazing

Energy-Efficient Windows and Doors Installation

Reduce energy loss, improve comfort, and secure your home with modern window and door replacements.

Old windows and doors are one of the biggest culprits for heat loss in UK homes. At Northern Retrofit, we install high-performance, energy-efficient alternatives that lock in warmth and enhance security.

Google icon

4.6

89+ Reviews

FENSA-registered installers

Fully PAS2030 compliant

10-year product and workmanship guarantee

Installed by expert retrofit teams

FENSA-registered installers

Fully PAS2030 compliant

10-year product and workmanship guarantee

Installed by expert retrofit teams

FENSA-registered installers

Fully PAS2030 compliant

10-year product and workmanship guarantee

Installed by expert retrofit teams

FENSA-registered installers

Fully PAS2030 compliant

10-year product and workmanship guarantee

Installed by expert retrofit teams

Accredited by the UK's Most Trusted Retrofit Schemes

Accredited by the UK's Most Trusted Retrofit Schemes

What are energy-efficient windows and doors?

They’re modern uPVC or composite products designed to reduce heat transfer, enhance security, and comply with the latest building regulations. Double or triple glazed, they form a critical part of your home’s energy envelope.

White uPVC windows and door with gold handles and leaded glazing

Why upgrade your windows and doors?

Replacing old windows and doors can dramatically improve your home’s thermal performance and comfort.

Old windows leak heat and let in draughts.

Secure doors reduce the risk of break-ins.

Upgrades can increase property resale value.

Ageing frames and seals no longer close, lock or seal properly.

Modern glazing cuts condensation and noise.

Key Benefits

Peace of mind and comfort built in with every install.

Lower heating bills year-round

Enhanced home security

Reduced condensation and mould

Quieter living with acoustic insulation

Better EPC rating and compliance

How It Works

How It Works

We make the upgrade process smooth, affordable, and hassle-free.

We make the upgrade process smooth, affordable, and hassle-free.

1

1

Survey & Recommendation

We assess your property and recommend the right window and door solutions.

2

2

Installation Scheduling

We’ll work around your schedule to carry out the work with minimal disruption.

3

3

Expert Installation

Our certified teams handle everything to the highest standards.

Trusted by Industry Leaders Across the UK

Serving homeowners, landlords, contractors, councils and housing associations

  • CLC Group Logo
  • Cocuun Logo
  • Hull City Council Logo
  • Energy Store logo
  • Hull City Council Logo

Trusted by Industry Leaders Across the UK

Serving homeowners, landlords, contractors, councils and housing associations

  • CLC Group Logo
  • Cocuun Logo
  • Hull City Council Logo
  • Energy Store logo
  • Hull City Council Logo

Trusted by Industry Leaders Across the UK

Serving homeowners, landlords, contractors, councils and housing associations

  • CLC Group Logo
  • Cocuun Logo
  • Hull City Council Logo
  • Energy Store logo
  • Hull City Council Logo

Trusted by Industry Leaders Across the UK

Serving homeowners, landlords, contractors, councils and housing associations

  • CLC Group Logo
  • Cocuun Logo
  • Hull City Council Logo
  • Energy Store logo
  • Hull City Council Logo

Why people trust Northern Retrofit

Why people trust Northern Retrofit

Rated 4.6 by homeowners, landlords and housing providers across the UK.

Rated 4.6 by homeowners, landlords and housing providers across the UK.

Reviewed & Trusted
Reviewed & Trusted

Rated 4.6 out of 5 on Google by our satisfied clients across the UK, and growing every month.

Certified & Compliant
Certified & Compliant

Fully accredited retrofit installer. Our work meets PAS2030 and TrustMark standards.

Insurance-backed Guarantee
Insurance-backed Guarantee

Every installation is covered by a third-party insurance-backed guarantee, giving you complete peace of mind.

Free, No-Obligation Assessment
Free, No-Obligation Assessment

We'll check your eligibility and provide expert guidance, with no hard sales and no hidden costs.

  • Cavity wall insulation
    After receiving a letter from Northern Retrofit informing me of the government scheme to improve insulation and that it was a free service, I was initially sceptic but decided to look into it further and, after a very pleasant phone conversation, I was assured it was ‘legit’ and went ahead with arranging cavity wall insulation which was carried out efficiently by a couple of very pleasant workers who made sure I had everything in place to keep my property sufficiently insulated also checking whether or not I needed ventilation/extractor fans which they were only too pleased to supply and fit at zero cost to me! Excellent service and I would not hesitate to recommend Northern Retrofit.
    Jim Tigernuts2025
  • EPC
    Very happy with the quick service to get a new EPC for my property.
    Chris Lambert-DowellMarch 2026
  • EPC
    Arrived promptly, great communication, inspection carried out of friday, EPC certificate issued on monday, no complaints
    Ellie ShreeveJanuary 2026
  • Room in roof insulation
    From initial contact to completion, the room-in-roof work done by Northern Retrofit on my house was completed to my total satisfaction. The workforce was efficient, friendly, and cooperative throughout the entire process. I would highly recommend this company to anyone considering similar work. One point to note is that, as with any plastering work, dust can get into the air, so it’s important to adequately cover furniture and belongings beforehand.
    Malcolm Broadbent2025
  • Cavity wall insulation
    Highly recommended this company to anyone. We had Cavity Wall insulation, window vents and an extractor fan installed. The process was seamless from the beginning through to the end. Work undertaken was to a high standard. Friendly, reliable and efficient staff who kept us fully informed at all times.
    sally townend2025
  • Loft & cavity wall
    Amazing service from Northern Retrofit, from enquiry to completion of loft and cavity wall insulation 7 days ! Great helpful staff and the installation engineers were courteous and efficient, well done to Northern Retrofit !!
    Tom Rush2025
  • Internal wall insulation
    Great company. Staff were fantastic. Very efficient. Work carried out was amazing. Don’t have many pictures but the finish was great. Would recommend without a doubt. We had internal insulation done
    Lisa Smith2025
  • Cavity wall insulation
    Free cavity wall insulation and extractor fan in bathroom fitted quickly and professionally. Small leakage of beads in the cellar which they came back and sorted the same day I rang. No complaints whatsoever, rare to get a worthwhile service for free! Thank you
    Bella GK.2025
  • Cavity wall extraction
    First class service from Northern Retrofit. We had our old cavity wall insulation taken out, and replaced with new. We were happy from start to finish, and found them to be both friendly and efficient. A special thanks must be given to Lucy in the office, and Kelby and Elliott who carried out the work. We are very happy with the result, it has made the house so much warmer. Thank you.
    Frances Sugden2025

Areas we cover

Our teams work across the north of England, the Midlands, the East of England and Wales.

  • North East
  • North West
  • Yorkshire and the Humber
  • East Midlands
  • West Midlands
  • East of England
  • Wales

Head offices in Beverley and Warrington

Not sure if we cover you? Ask about your area
We cover this regionOutside our usual areaHead office

Ready to Start Your Retrofit Project?

Ready to Start Your Retrofit Project?

Get expert guidance and a detailed quote from Yorkshire's most trusted retrofit specialists

Get expert guidance and a detailed quote from Yorkshire's most trusted retrofit specialists

Prefer to Call?

Mon-Fri 8am-6pm, Sat 9am-4pm

We respond within 2 hours

Head offices in Beverley and Warrington

Covering the North, the Midlands, the East of England and Wales

What Happens Next?

We'll call you within 24 hours to confirm your appointment

Free 30-minute home assessment at your convenience

Instant quote and booking for installation

Frequently Asked Questions

Frequently Asked Questions

Is funding available for windows and doors?

Windows and doors aren't covered by the insulation funding schemes. We quote them as standard installation work.

How long does the installation take?

Most installations are completed in 1–2 days depending on the number of windows and doors.

What kind of guarantee do you provide?

We offer a 10-year product and workmanship guarantee for all windows and doors.

Do you work for councils, housing associations and contractors?

Yes. We deliver window and door replacements for councils, housing associations and main contractors, from single properties to larger programmes.

Are your installers FENSA registered?

Yes. Our windows and doors are fitted by FENSA registered installers and meet current building regulations.

What areas do you cover?

We cover the North East, North West, Yorkshire and the Humber, the East and West Midlands, the East of England and Wales, from our head offices in Beverley and Warrington.