Wall after damp proof plastering

Not sure which one you've got?

Rising, penetrating and condensation look similar and need completely different fixes. Jack will tell you which it is, free.

Torch-on felt being laid

Strip it back. Do it once.

We take the covering off, replace anything rotten and insulate to current regs before the new system goes down.

Elevation finished in flexible wall coating

Cracked render, stained walls

A flexible coating bridges hairline cracks and sheds water while letting the wall breathe. Ten to fifteen year finishes.

Skylight detail dressed into new felt

Jack, William and a small team

The person who quotes your job runs it, and answers the phone afterwards. Employed teams, £5m public liability.

Meet the team

Our damp proofing &
roofing guarantees.

What's covered, for how long, and what you're handed on the day we finish. Including the bits most firms leave out.

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Genuinely free · No obligation
Why it matters

A guarantee is only worth the paper it's on.

Every damp firm says "guaranteed". Far fewer will tell you the length, the system it applies to, or hand you a document at the end. We'd rather set it out plainly up front, so you know exactly what you're getting before you commit to anything.

You'll also want it later. When you sell the house, the buyer's solicitor will ask for damp proofing paperwork, and not having it can hold up a sale.

What you get handed over

  • Your guarantee document, dated and specific to your property
  • A written record of what was found and what was done
  • The system and product used, named
  • Photos of the work where it'll be covered up
  • Aftercare notes — particularly drying times before decorating

Keep it with your deeds. Buyers and their solicitors will ask.

By service

What's covered, and for how long

Damp
Injected damp proof course — 30 years

Our DPC injection uses the SecoMUR chemical system, which forms a new water-repellent barrier through the masonry. The guarantee runs for 30 years from completion and the paperwork is handed over on the day we finish.

Damp
Damp proof plastering

Covered alongside the damp course where the two are done together, which is the normal arrangement — replastering with a salt-inhibiting render is part of the same fix rather than a separate job.

Roofing
Flat and pitched roofing

Guarantee length depends on the system fitted and the manufacturer's own warranty. We confirm the exact term in writing at the survey, before you commit — rather than quoting a headline figure that turns out to have conditions attached.

Exterior
Wall coatings and cork render

Terms depend on the product specified for your wall and its condition. Again, confirmed in writing at survey.

Below ground
Basement tanking

Waterproofing systems carry their own manufacturer terms, and where a pump is fitted it has separate servicing requirements. All set out at survey.

Everything
£5m public liability

Covering our work and our people while we're on your property, whichever service you're having done.

We won't put a headline number against roofing or coatings on a web page, because the honest answer varies by system and by wall. You'll get the specific figure in writing before you spend anything — which is more useful than a number on a website.

Worth knowing

What a guarantee doesn't cover

Every guarantee in this trade has limits, and the firms that don't mention them are the ones you end up arguing with. Here are ours, up front.

Not covered

New problems elsewhere

A guarantee on an injected damp course covers that damp course. If a gutter fails two years later and soaks a different wall, that's a new job — though we'll always come and look.

Not covered

Structural movement

If a building moves and cracks a coating, that's the structure rather than the coating. We'd tell you at survey if we thought movement was a risk.

Conditions apply

Ventilation and upkeep

Condensation problems come back if extract fans are switched off or air bricks get blocked up. Treatments assume the property is being ventilated normally.

If something we've done isn't right, ring us. Our reviews mention issues being sorted promptly more than once, and that's the part we'd rather be judged on than the wording of a certificate.

Ask us about the guarantee first.

Before you book anything, ask what's covered and for how long — of us and of anyone else quoting. It's the fastest way to sort the serious firms from the rest.

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Straight answers

Damp proofing guarantee questions

Is the guarantee transferable if I sell?
Ask us at survey and we'll confirm the position for your specific job in writing. It's a common question when people are damp proofing ahead of a sale, and it's exactly the sort of thing that should be pinned down before work starts rather than after.
What does the 30 years actually apply to?
The injected chemical damp proof course itself — the barrier we form through the masonry using the SecoMUR system. It's specific to the walls treated and recorded on the document you're handed.
Will my solicitor accept it when I sell?
Buyers' solicitors typically want to see documentation showing damp proofing work was carried out and what guarantee came with it. You'll have that. If your solicitor asks for anything additional, get in touch and we'll help where we can.
Do I need to do anything to keep it valid?
Mainly common sense: keep gutters clear, don't block up air bricks, and use extract ventilation where it's been fitted. Anything specific to your job will be on the aftercare notes we hand over.
Is the guarantee insurance-backed?
We'll confirm the exact backing arrangements for your job in writing at survey. It's a fair question to ask any damp firm, and one worth getting a straight answer to before you sign anything.
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