Why Proper Roof Certification Matters in Milton Keynes
Cutting corners on roof paperwork can cost you thousands – through failed surveys, delayed sales, insurance claim refusals, or remedial works you did not plan for. At Maxwells Roofing, we do not just fit a roof. We deliver compliant roofing with the correct documentation so your home stays safe, sale-ready, and properly insured.
We are a local, privately owned roofing company led by Luke Maxwell, serving Milton Keynes, Northampton, Bedford, Luton, Stony Stratford, Newport Pagnell, Bletchley, Great Linford, Bradwell and all surrounding areas – highly reviewed with 80+ 5★ reviews on Checkatrade and 5★ only reviews on Google Business.
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What “roof certification” means in the UK
In UK roofing, “roof certification” is not a single universal certificate. It is the pack of documents that proves your roof was installed to current standards and signed off correctly where required. Depending on the job, your pack should include:
- Building Regulations Compliance Certificate (BRCC) when applicable – issued by Local Authority Building Control after inspection, or via a Competent Person Scheme contractor for eligible refurbishment work.
- Specifications and product data – membranes, insulation, fixings, and build-ups showing compliance, including external fire performance classifications like Broof(t4) for flat roofs.
- Photographic evidence – before, during, and after images that demonstrate concealed layers such as insulation thickness, VCL continuity, ventilation paths, and fixings.
- Manufacturer warranties – for systems such as EPDM, GRP, or reinforced bitumen membranes, valid only when installed to the manufacturer specification.
- Workmanship guarantee – our written guarantee on labour and installation quality.
- Maintenance guidance – simple care tasks that protect warranties and lifespan.
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When Building Control sign-off is required
Under the Building Regulations, you must notify Building Control or use an approved Competent Person Scheme route when works include:
- Replacing or refurbishing more than 25% of the roof covering
- Structural alterations such as rafters, joists, deck replacement, or dormer creation
- Installing new rooflights or roof windows that are not like-for-like, roof lanterns, or significant skylight modifications
- Converting a loft
- Installing solar PV or solar thermal systems that affect the roof structure or covering
- Upgrading insulation as part of a re-roof above the 25% trigger
What happens:
- LABC route – Local Authority Building Control inspects key stages and issues a BRCC on completion; or
- CPS route – for eligible refurbishment work, a CPS-registered contractor can self-certify and arrange a BRCC at a reduced fee.
Not all works qualify for self-certification. Some projects still require local authority inspections. We coordinate the correct path, include any inspection costs and timings in our plan, and keep you informed from start to finish.
The regulations your roof must meet – plain English
Roofing touches several Approved Documents. Here is what they mean for your home:
- Part A – Structure
Your roof must remain structurally sound. Heavier coverings such as slate replacing light tiles often require structural assessment. For flat roofs, deck condition and spans must be verified. Fixings must meet wind uplift zones. - Part B – Fire safety
Roofs must limit external fire spread. Flat roofs typically require a Broof(t4) classification for the waterproofing system. Fire breaks and correct detailing around openings, dormers, and party walls are essential. - Part C – Resistance to moisture
The build-up must prevent rain ingress and manage condensation risk. In flat roofs, continuity of the vapour control layer and airtightness are vital. In pitched roofs, correct underlay, laps, flashings, and penetrations with collars and leadwork protect against leaks. - Part F – Ventilation
Roofs need airflow to avoid damp and mould. Cold pitched roofs usually require continuous eaves ventilation and high-level ventilation at ridge or equivalent. Warm flat roofs manage moisture through a robust VCL and airtightness. Cold flat roofs require cross-ventilation to specification. - Part L – Conservation of fuel and power
Re-roofing that replaces more than 25% of the covering usually triggers insulation upgrades. Guidance in England typically targets roof U-values around 0.16 to 0.18 W/m²K. Detailing must maintain insulation continuity at junctions to avoid thermal bridges.
We specify materials and methods to meet the relevant parts above and document them for your certificate pack.
Why certification matters: safety, money, and resale
- Protects your home – proper structure, fire performance, and moisture control prevent costly issues later.
- Reduces energy bills – Part L compliant insulation cuts heat loss and damp risk.
- Keeps warranties valid – manufacturers require correct specification and installation.
- Avoids enforcement – non-compliant works can trigger remedial notices and fines.
- Smooths house sales – solicitors and surveyors look for BRCCs for re-roofs, rooflights, and structural changes. Missing paperwork can delay sales or force renegotiations.
- Helps with insurance – claim handlers often request evidence of compliance before paying for storm or leak damage.
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Our 6-step roof compliance process
- Survey and diagnosis
Visual and, if needed, drone inspection. Moisture and ventilation assessment. Structure indicators reviewed, with engineer input advised where sensible. - Clear, fixed-scope quotation
Plain-English specification mapped to the relevant Approved Documents. Options for pitched tile or slate, or flat systems such as EPDM, GRP, or RBM, with pros and cons. Transparent pricing. - Pre-start compliance planning
We determine if LABC notification or a CPS route is required. Fees and timings are built into your schedule. We handle neighbour and access considerations. - Installation to best practice
Trained roofers using premium-grade materials and correct fixings. Ventilation, VCLs, insulation continuity, and flashing details delivered to spec. In-progress photos capture hidden layers. - Inspection and sign-off
We coordinate with Building Control where applicable. Any remedials are handled immediately. Final BRCC arranged where required. - Handover and aftercare
Your homeowner compliance pack includes photos, data sheets, warranties, and a maintenance plan. You also receive our workmanship guarantee and optional maintenance visits.
What you will receive from Maxwells Roofing
- Detailed quote tied to the relevant regulations
- Programme of works and access plan
- Photo record before, during, and after
- Manufacturer data sheets and care guides
- Warranties and our workmanship guarantee
- BRCC where legally required
- Straightforward aftercare advice
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Areas we cover around Milton Keynes
We are local specialists serving:
- Milton Keynes, Newport Pagnell, Stony Stratford, Bletchley, Great Linford, Bradwell
- Bedford, Luton, Northampton
- Every surrounding town, estate, and village
From storm repairs in Bedford to complete re-roofs in Newport Pagnell and skylight installs in Bletchley, we deliver compliant, documented roofing across the region.
Flat roofs: Broof(t4), warm roofs, falls and drainage
If you are renewing a flat roof, the right specification is essential:
- Fire performance – choose systems with a Broof(t4) external fire performance classification.
- Warm roof build-ups – insulation above the deck with a robust vapour control layer to control interstitial condensation. No ventilation needed when detailed correctly.
- Falls and drainage – minimum 1:80 finished falls, often designed at 1:60 to account for tolerances. Outlets, overflows, and drip details protect edges and fascias.
- Materials – EPDM, GRP, and reinforced bitumen membranes each have use-cases. We match the system to your property, foot traffic, and budget.
- Rooflights and lanterns – correct upstands, kerbs, and fire-safe detailing are critical, and many installs require Building Control notification.
Pitched roofs: ventilation, underlays and re-roof triggers
- Underlays – modern breathable membranes help moisture management but are not ventilation by themselves. Eaves and ridge ventilation detailing is often required.
- Fixings – correct nail or screw grades and patterns prevent wind uplift and tile creep, in line with BS 5534 guidance and manufacturer instructions.
- Leadwork and flashings – proper code selection, laps, and fixings protect junctions for decades. Alternatives must still meet performance needs.
- Re-roof triggers – replacing more than 25% of the covering usually triggers Part L insulation upgrades and Building Control notification.
Common non-compliance mistakes we fix weekly
- No continuous eaves or ridge ventilation on pitched re-roofs
- Flat roofs without a proper VCL or with unsealed laps
- Insufficient insulation thickness or thermal bridges at eaves and rooflights
- Wrong fixings or inadequate perimeter securement causing wind uplift risk
- Lead flashings too short, under-fixed, or poorly chased
- Poor drainage design – no falls, missing drips, blocked outlets
- Missing fire breaks around dormers or party walls on flats or terraces
- No documentation – nothing to show surveyors, insurers, or buyers
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Frequently asked questions
How quickly can you handle Building Control sign-off?
For typical re-roofs, we arrange notification before starting. Inspections can be same-week depending on local capacity. On completion, BRCCs are usually issued within days of final approval. We will set expectations up front.
Do all roof repairs need certification?
Minor like-for-like repairs that do not exceed 25% of the covering typically do not require Building Control. Full or partial re-roofs, structural works, new rooflights, and insulation upgrades often do. We will advise on the correct route for your project.
What is the difference between planning permission and Building Control?
Planning concerns the appearance and impact of the work. Building Control covers safety and performance. Most re-roofs do not need planning permission but do need Building Control. We will tell you if planning applies.
I have had a re-roof before without paperwork. Can you help me sell?
Yes. Our inspection can identify compliance gaps and we can quote for any remedials. Where appropriate, we can coordinate a regularisation application with the local authority to retrospectively sign off qualifying works.
Will my warranties be valid?
Yes – when systems are installed to manufacturer instructions and the roof meets relevant standards. We register applicable manufacturer warranties and provide our workmanship guarantee.
What does a roof compliance pack cost?
Your documentation pack is included in our service. If Building Control fees apply, we itemise them clearly in your quote so there are no surprises.
Book a certified roof inspection and quote
If you need urgent repairs, a full re-roof, skylights, chimney work, or guttering – and want the peace of mind that everything is done to standard and properly certified – get in touch today.
Call Us Now For A Free Quote on 07311091804
Email: sales@miltonkeynesroofing.uk
About Maxwells Roofing
We are a trusted, owner-led roofing company serving Milton Keynes and the surrounding area. Every project is overseen for quality by Luke Maxwell and installed by trained professionals using premium materials. We prioritise honest advice, transparent pricing, and long-lasting results – backed by 80+ 5★ reviews on Checkatrade and 5★ only reviews on Google Business.
Last updated: 19 November 2025
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