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Replacement CERTASS window & door certificates

Lost your CERTASS window or door certificate? We'll find it and get your copy.

Selling or remortgaging and need a replacement CERTASS Building Regulations certificate for replacement windows or doors? Enter the postcode and we'll search CERTASS, FENSA and your council's building control records, then order your official copy.

  • Searches CERTASS alongside FENSA and council building control for your address
  • First written findings by email within 1 working day
  • Official replacement certificate ordered for you, fees included (up to 2 copies)
  • No record, no fee: a full refund if no window or door record exists
£79
One price per property, including the official fees for up to 2 copies. Anything more is optional and quoted first.
  1. 1 Address
  2. 2 What you need
  3. 3 Your details

Find your CERTASS certificate by postcode

We search CERTASS, FENSA and your council's building control register in one go.

£79 all-in · Up to 2 official copies included · No record, no fee

206,373certificates found for our customers

The registers we search

  • FENSAWindows and doors
  • CERTASSWindows and doors
  • Gas Safe RegisterBoilers and gas
  • NICEICElectrical
  • ELECSAElectrical
  • NAPITElectrical
  • MCSSolar and heat pumps
  • EPC RegisterEnergy performance
  • Building controlEvery council in England and Wales

Replacement CERTASS window and door certificates

CERTASS is one of the largest government-authorised Competent Person Schemes in the UK for replacement windows, roof lights and external glazed doors. When a CERTASS-registered installer fits replacement windows or doors in England or Wales, they notify the installation through CERTASS so a Building Regulations Compliance Certificate is issued for the property.

When selling a house, the Law Society's TA6 Property Information Form asks at Question 5.1(a) and 5.2(c) for the Building Regulations compliance certificate for any replacement windows or doors fitted since 1 April 2002. A CERTASS certificate satisfies that requirement in exactly the same way as a FENSA certificate.

How we find and replace your CERTASS certificate

FENSA, CERTASS or another government-authorised competent person scheme — or your local council's building control archive if the installer wasn't in a scheme.

  • The catch: Unless you know which scheme the window company belonged to at the time, you have to search multiple registers and your council separately, and each scheme charges its own replacement fee.
  • What we do: We search FENSA, CERTASS and your council's online register in one go, report back within 1 working day, and include the official replacement certificate in your £79 fee.
  • Turnaround: First findings within 1 working day; official copy ordered the same day.
  • Worth knowing: Window company guarantees are separate from the Building Regulations compliance certificate — buyers' solicitors almost always ask for the certificate itself.

Enter the property postcode at the top of this page to start your search. It's £79 per property including the official fees for up to 2 replacement copies, backed by our no record, no fee refund promise.

Questions about CERTASS certificates

Is a CERTASS certificate accepted by solicitors in the same way as FENSA?

Yes. Both CERTASS and FENSA are government-authorised Competent Person Schemes for replacement windows and doors under the Building Regulations. Buyers' solicitors and mortgage lenders accept a CERTASS Building Regulations Compliance Certificate on the TA6 form in exactly the same way as a FENSA certificate.

What if I'm not sure whether my installer used CERTASS or FENSA?

You don't need to know. Every window and door search we run checks both CERTASS and FENSA (as well as your local council's building control register) for your address.

What if no CERTASS or FENSA record exists for the windows?

If no record is held by CERTASS, FENSA or your council, we refund your £79 payment in full under our no record, no fee guarantee and explain the usual routes your solicitor can take: see selling a house with missing certificates.

More: replacement FENSA certificates, guide to window & door certificates, the TA6 form and your certificates. Checked October 2026.

How it works

Certificates for work on your home are held by different schemes, depending on who did the work and when. We do the legwork across all of them.

1

Tell us the address

Pick your property and tick what you know is needed, or ask us to check everything.

2

We search every register

Within 1 working day we email your first findings: what exists for your home, who holds it, and what to do about anything missing. Council records take longer, and we send those as they arrive.

3

You get the copies

We order the official copies. Each register sends its copy, usually within 1 to 15 working days, and you download them from your order page.

Where we look

The registers a buyer's solicitor usually asks about.

Windows and doors

FENSA and CERTASS

Boilers and gas work

Gas Safe Register

Electrical work

NICEIC, NAPIT and ELECSA

Solar panels and heat pumps

MCS

Extensions and building work

Your council's building control

Energy performance

The official EPC register

Conveyancing, sales progression & probate

For solicitors, estate agents and property professionals

Use My Certs directly on a file with no account needed, or share a tracked partner link with your clients.

Conveyancers and solicitors

Order as a client disbursement with your matter reference and a printable receipt. Need to protect Building Regulations indemnity insurance options? Tick public register check only in Step 2 and we won't contact the council directly without your say-so.

Estate agents and sales progressors

Unstick chains held up by missing FENSA, Gas Safe, electrical or building control certificates. Order on your vendor's behalf, or send them your partner link and earn a £15 referral fee for every completed search.

Probate, executors and brokers

Selling an estate where no one knows what work was done, or clearing a mortgage valuation retention? One search checks all 8 schemes and the council, backed by our no record, no fee refund promise.

For professionals & partner links Order for a client now

Questions

What does "no record, no fee" mean?

If we can't find any of the records you asked about, we refund your £79 in full. Most registers let us search for free. If one charges us to search, we'll tell you before we use it, and only that fee would be kept back.

How long does it take?

FENSA, CERTASS, Gas Safe, NICEIC, ELECSA and the EPC register can be searched online, so you'll have our first findings by email within 1 working day of ordering. Council building control, NAPIT (without a certificate number) and MCS answer by request instead: we ask them the same day, and they usually reply within 5 to 15 working days. Some councils take longer, and we'll tell you if yours does. We send you updated findings as each reply comes in.

Copies then come from each register in their own time: Gas Safe usually emails them within a day or two, and FENSA can take up to 15 working days. We pass each one on as soon as it arrives.

Can a solicitor, estate agent or executor order on someone's behalf?

Yes. Choose "For a client or estate" in Step 3 to add your name, firm and matter reference. Findings, copies and a printable disbursement receipt are sent to your email address. If you want us to check the council's online public register without contacting the council directly (for example, while considering Building Regulations indemnity insurance), tick that option in Step 2. See For professionals for partner and client-discount links.

Do you provide annual Landlord Gas Safety (CP12) or 5-year EICR inspections?

No. We retrieve existing Building Regulations installation and completion certificates (such as a new boiler notification, FENSA window certificate, Part P electrical installation certificate, MCS certificate or council completion certificate) plus the property's EPC. Annual landlord gas safety checks and periodic EICRs require a fresh visit from a registered engineer.

Why use My Certs instead of chasing registers yourself?

Because certificates for a single home are scattered across eight separate schemes and over 300 local councils — and unless you already have the original certificate number or know which scheme the tradesperson belonged to, you have to track down and check each archive separately. Some online portals only show recent years, several bodies require proof of ownership or written authority, council search fees are often non-refundable when nothing is found, and contacting a council directly can accidentally invalidate a Building Regulations indemnity policy.

For one fixed £79 fee, we search every register and your council in the right order, send your first written findings within 1 working day, pay the official fees for up to 2 replacement copies, and refund you in full under our no record, no fee guarantee if nothing is on file.

What if a certificate doesn't exist?

We'll tell you plainly, and explain the usual options: asking the original installer to register the work, applying to your council for a regularisation certificate, or asking your solicitor about indemnity insurance.

Where do you cover?

Homes in England and Wales, where these schemes and building control records apply. We can't currently help with properties in Scotland or Northern Ireland.

Can I cancel?

Yes. You can cancel within 14 days by emailing us or using our cancellation form. Because we start straight away at your request, we'll refund you less the value of work already done and any register fees already paid. Once the search is finished and your copies are ordered, the service is complete. See our terms.

Who are you?

My Certs is an independent service based at 2 St John St, London, EC1V 4LZ. We're not part of any certificate scheme or council. Card payments are handled by Stripe for Website Services, the business that runs My Certs.