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New Building Regulations

New Building Regulations for Windows and Doors

At SafeGuard, we’re committed to helping homeowners, architects, and builders stay compliant with the latest building regulations while delivering the very best in energy efficiency, performance, and safety.

The most recent changes to Building Regulations Part L (Conservation of Fuel and Power) and Part F (Ventilation) came into effect in June 2022, raising the standards for the thermal performance of windows and doors in new and existing homes across England.

These updates are part of the government’s roadmap to achieve net-zero carbon emissions by 2050, and we’re proud to supply and install products that not only meet but exceed these new requirements.

What Has Changed?

Trade-Counter

The revised regulations focus on reducing heat loss and improving overall building efficiency. The main updates include:

  • Lower U-values for windows and doors
    New installations must achieve improved thermal performance to reduce energy consumption.
    • Replacement windows: maximum U-value of 1.4 W/m²K
    • Doors (with > 60% glazed area): maximum U-value of 1.4 W/m²K
    • Doors (with < 60% glazed area): maximum U-value of 1.0 W/m²K
  • Better airtightness and insulation
    Products must be designed and fitted to minimise air leakage and maximise energy efficiency.
  • Improved ventilation (Part F)
    Ensuring homes have sufficient airflow to maintain good indoor air quality while improving insulation.

Reasons to choose SafeGuard

Peterborough-Showroom

How Safe-Guard Helps You Stay Compliant

We provide a GGF Insurance-Backed Guarantee, giving you peace of mind that your investment is protected

With decades of experience in the glazing industry, our team ensures every product we install is fully compliant with the latest building regulations.

We work with trusted, accredited manufacturers and supply only energy-efficient double and triple-glazed systems tested to meet or exceed current standards.

Our installation teams are FENSA-registered, so you’ll receive a FENSA certificate with every qualifying installation, proof that your new windows and doors meet both Building Regulations and energy-efficiency requirements.

Future-Ready Solutions

Keeping Homes Energy-Efficient and Compliant

SafeGuard is already preparing for the Future Homes Standard 2025, which will demand even stricter energy-efficiency performance.

By choosing us today, you can be confident your property is future-proofed with glazing solutions that deliver long-term comfort, sustainability, and value.

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Testimonials

  • Mr H

    “I was back in England over Christmas and went to look at the house at Collyweston and noticed that the glass panel has now been replaced. I just wanted to thank you for your generous goodwill offer and for arranging the fitting without any quibble, I appreciate your gesture which is a measure of the quality of your service and reputation.” — Mr H, Retail Customer

    Mr H
    Retail Customer
  • Mr B

    “I would like to mention to you that what really impressed me was that as I approached the factory door two employees were leaving the building, possibly for a break. They greeted me politely, turned round, entered the building, and found someone to deal with me. When the glass for the table was found, another employee insisted on carrying it out to the car, and helping me place it safely inside. Nothing very significant, but it impressed me. Feel free to use or edit any of this for the testimonial and by all means use my name.”

    Mr B
    Retail Customer
  • Family R

    “I must say we have been impressed with your service – from the way you conducted yourselves on the quotation visit, through order confirmation & then fitting visit – professional, timely & to an excellent standard. We are delighted with the finish & have noticed the benefits already – great service, good job done.”

    Family R
    Retail Customer
  • Mrs A

    “It’s been a real pleasure to deal with Safeguard and I have been hugely impressed with the quality of the work and the attitude of everyone I’ve dealt with. The guys on site this week were polite and friendly, and they left everything very clean and tidy. The conservatory and other windows look great, and I can’t really believe that it’s possible to replace glazing with so little damage to the surrounding woodwork and paint! I’m sure this is absolutely down to the care that was taken by everyone who was involved. Thank you. If you ever need a reference for someone who is considering your company, please feel free to give them my contact details.”

    Mrs A
    Retail Customer
  • Gillian Durno

    "We just wanted to say Stuart how impressed we are with Ben and Leigh. They’ve done a fantastic job today, are always polite and go out of their way to help. They stayed late today to repair the guttering that another contractor had left just hanging for ages. Nothing ever seems too much trouble. Can you please thank them from us. We really are very grateful and impressed. Everything from Safeguard is looking fantastic !"

    Gillian Durno
  • Claire B

    “We wanted to say that we are delighted with the service, product and the overall job. The team involved in getting the work done were very helpful, professional. Special mention must go to (and apologies I can not remember his name) the man with the beard who has just got married who was very knowledgeable and felt he dealt with the job and the team brilliantly. The issue that we had with the large bedroom window glass was dealt with very quickly.”

    Claire B
  • Fiona

    “My experience with Safeguard was outstanding, I was provided with an exceptional service and Victoria was on hand to answer any questions or queries I had, nothing was too much and I am more than happy with my result. I would highly recommend this service to anyone requiring replacement glass. Thank you!”

    Fiona
  • John & Peg

    “We would like to thank you and all your team for the lovely balustrading you have installed for us. The chaps did an excellent job and made our hallway a treat to walk through. They were courteous and diligent all the time they were in our house. It was a delight to work with them. We will be recommending your company should any of our friends need glass balustrades.”

    John & Peg
    Domestic Customer
  • Mr O

    “Just wanted to say a quick thank you for the glass I picked up a few weeks ago. It has made a good display look amazing and is really high quality.”

    Mr O
    Business Customer

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Visit Our Peterborough Showroom

Want to see products up close, choose finishes and talk through your options face-to-face?

Visit our Peterborough showroom, explore full-size displays, view materials, and speak with our glazing experts. book your visit in advance or just drop in during opening hours.

Planning your next home improvement or self-build projects?

Get in touch with the team today on 01733 555040

or request a call back

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