The UK’s construction sector is preparing for one of the biggest regulatory shifts in recent years. The 2025 Building Regulations—driven by the Future Homes Standard—will transform how new roofs are designed and installed.
At Groom & Co, we’ve been at the forefront of roofing across London and the South East for more than 50 years, and we’re already adapting to ensure our customers benefit from compliant, future-ready roofing solutions.
If you’re planning a new roof installation in 2025 and beyond, here’s everything you need to know. For tailored advice, call us on 0800 6444777 or 0793 144 0692, or email us at info@groomncoroofing.co.uk.
Your roof is one of the most important elements of your home. With the new regulations, it’s more important than ever to choose a trusted contractor who understands energy efficiency, compliance, and durability.
What Are The 2025 Building Regulations?
The 2025 Building Regulations are being introduced under the government’s Future Homes Standard. Their primary goal is to reduce carbon emissions from new homes by 75–80% compared to 2013 levels. For roofing, this means stricter rules around:
- Insulation performance (U-values)
- Airtightness and ventilation
- Use of sustainable materials
- Integration with renewable technologies, such as solar panels
As a result, 2025 building regulations roof installations must achieve higher energy performance while remaining weather-resistant and durable.
How Will These Regulations Impact New Roof Installations?
1. Stricter Insulation Standards
Roofs will need to meet much lower U-values, meaning significantly better thermal performance. For example, a roof that once required 270mm of mineral wool may now need over 400mm, or the use of advanced rigid insulation boards. This reduces heat loss, lowers energy bills, and helps homeowners meet sustainability targets.
2. Greater Focus On Ventilation
While airtightness is key to efficiency, homes still need healthy airflow. Roofing systems will be designed with better ventilation solutions to prevent condensation and mould. Homeowners will notice an improvement in indoor air quality, especially in loft conversions and insulated extensions.
3. Renewable Integration
The regulations encourage homes to be “solar ready.” Roof structures must be able to support PV panels or solar tiles, which may affect design and installation methods. At Groom & Co, we’re already preparing our projects with renewable integration in mind so that our customers can take advantage of green energy as soon as they are ready.
4. Material Choice
There will be a greater emphasis on sustainable roofing materials—from recycled slats to energy-efficient membranes—helping to reduce environmental impact. These materials often offer better durability too, reducing the need for future repairs.
What Does This Mean For Homeowners?
If you’re building a new property or extending your home after 2025, your roof must comply with these new standards. The benefits include:
- Lower energy bills thanks to improved insulation
- A healthier living environment with balanced ventilation
- Future-proofing your home for renewable energy integration
- Added value by ensuring compliance with the latest regulations
At Groom & Co, we specialise in roof renewals and roof repairs, but we’re also fully prepared to deliver new roofs that meet the Future Homes Standard.
Working Together: Builders, Architects, And Homeowners
The new regulations will require closer collaboration between all parties involved in a roofing project:
- Architects will need to design with stricter insulation values and solar readiness in mind.
- Builders and roofers must ensure installation is carried out to exacting standards, avoiding thermal bridging and air leakage.
- Homeowners will need to make informed choices about materials and long-term efficiency goals.
At Groom & Co, we bridge the gap by working directly with all stakeholders. Whether you’re an architect designing a new build or a homeowner commissioning a loft conversion, we’ll make sure your roof installation is compliant, efficient, and future-ready.
A Practical Example Of Compliance
Imagine you’re planning a two-storey extension in Bromley in 2026. Under older rules, your pitched roof might have used 300mm insulation with simple felt underlay. Under the new standards, however, we would:
- Install 400mm equivalent insulation using rigid boards to meet U-value targets
- Incorporate vapour-permeable membranes and ridge ventilation to prevent condensation
- Design the roof trusses with enough strength to hold solar panels in the future
- Use sustainably sourced slats for a lower environmental impact
This ensures that the extension not only complies with the 2025 building regulations’ roof installation requirements but also provides a roof designed to last for decades with minimal running costs.
Contact Groom & Co
Why Choose Groom & Co For 2025-Compliant Roof Installations?
We’ve always prided ourselves on combining traditional craftsmanship with the latest roofing innovations. Our team already works to high standards of health, safety, and insurance compliance, and we’re constantly updating our practices to meet future regulations.
When you choose us for your new roof installation, you’ll benefit from:
- Over 50 years of industry experience
- Fully insured, qualified roofing professionals
- Expert advice on insulation, ventilation, and materials
- Safe and responsible working practices on every site
You can explore our recent projects in our portfolio to see the quality of our work across London and beyond.
Preparing Your Roof Project For 2025
If you’re considering a new build, extension, or roof replacement, now is the time to plan. We recommend:
- Consulting early – Discuss your design with a contractor familiar with the 2025 regulations.
- Choosing materials carefully – Opt for sustainable, durable, and regulation-compliant options.
- Considering renewables – Even if you’re not installing solar now, make sure your roof can support it in the future.
- Working with trusted contractors – At Groom & Co, we’ll ensure your project is compliant, safe, and built to last.
Conclusion
The 2025 Building Regulations will transform the installation of new roofs, prioritising energy efficiency and sustainability. At Groom & Co, we’re ready to help you navigate these changes with expert advice, high-quality workmanship, and full compliance.
Call us on 0800 6444777 or 0793 144 0692, or email info@groomncoroofing.co.uk to discuss your project.
FAQs
1. Will the 2025 Building Regulations affect existing homes?
No, they mainly apply to new builds and significant extensions. However, homeowners upgrading insulation or re-roofing can still benefit from higher energy efficiency.
2. How much will a compliant new roof cost?
Costs may be slightly higher due to better insulation and materials, but long-term savings on heating and cooling will outweigh the initial investment.
3. Do I need to replace my current roof to meet the new standards?
Not unless you’re building new or making major alterations. For existing homes, regular roof repairs and insulation upgrades are sufficient.
4. Can Groom & Co help with solar-ready roofing?
Yes. We can future-proof your roof design for solar panel installation, giving you flexibility and compliance with upcoming regulations.
5. When should I start planning my 2025 roof project?
The sooner, the better. Early planning ensures your design, materials, and contractor all align with the new rules.