Oxfordshire · England
New Build Mastic in Letcombe Regis
New build mastic across Letcombe Regis and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Gaps behind new kitchen upstands
- Sealant that never bonded to the surface
- Internal frame sealant that has split
New build mastic in Letcombe Regis, done properly
Our new-build work comes in two parts: plot mastic for developers, and putting right failed sealant for people who’ve bought a new home. In both, preparation makes the difference since hurried prep is behind a lot of new-build failures. We work on plot handovers, show homes and bathrooms & en suites, and common reasons people get in touch are shower seals failing in the first year or two and frame joints opening as the plaster dries.
Somewhere as small as Letcombe Regis, new homes tend to be conversions, self-builds or a few houses rather than an estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.
- Where
- Letcombe Regis (OX12)
- Wider area
- Oxfordshire
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
The process
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes anything from a few hours to several days, depending on the number of plots. Somewhere like Letcombe Regis needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- The failed sealant is removed completely.
- We clean out the dust and grit left from the build.
- Primer goes on where the surface and product need it, then the new sealant.
- We tool every joint neatly and tell you when each area can be used.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Plan for the work area to be out of bounds to pets and children
- Move anything stored near the joints
Ask for a quote
Every job is quoted individually, so start by telling us what you need. Simply call 0345 464 0079 or send us an email and describe the job and send pictures if you have them.
Related advice
Signs you need new build mastic in Letcombe Regis
The wrong product is sometimes used in the wrong place: decorators’ caulk in a wet area, or a stiff sealant where there’s movement. Neither lasts long.
Look out for these signs:
- Joints pulling apart as timber shrinks
- New-build shower sealant that has already split
- Untidy sealant flagged on a snagging list
- Skirting joints opening in the first winter
Whether the job is in Letcombe Regis itself or nearby, the right material for each joint matters as much as a neat finish.
What your quote should include
- Whether the sealant suits the joint
- Is the old sealant removed completely?
- How the colour is chosen
- What insurance they hold
For landlords and businesses
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Looking after it afterwards
Aftercare is simple, and it makes a real difference:
- Follow the cure time we give you
- Report sealant problems to your builder during the snagging period
- Avoid running a DIY bead over the old one
- Watch for new gaps as the house dries out
Leave the sealant for the cure time we give you before showering or bathing. Most silicones need around a day to cure enough for use.
Early snagging is easier snagging. Left alone, a small crack can become a leak in a busy bathroom.
Nearby places to Letcombe Regis
What else we do in Letcombe Regis
Your questions about new build mastic in Letcombe Regis
Is new build mastic in Letcombe Regis guaranteed?
Every job comes with our one-year guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Will you come out to Letcombe Regis?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Do you take on second-fix sealing for builders?
Yes. Plot mastic and second-fix sealing for developers is part of our work. Send the schedule and any specification and we will give you a quote.
Is there any odour?
Possibly a little. It fades as the sealant cures.
What information do you need?
Only a few details: where it is, what you’ve noticed and how we reach it. Then ring 0345 464 0079 or email us.
What does new build mastic cost?
Every job is different, so each one gets its own quote. To get one, ring 0345 464 0079 or send us an email with a short description of the job.
Should I try DIY first?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Leave it or put it right?
Small cosmetic gaps can wait for the house to settle, but water getting through cannot. Not sure whether yours can wait? You can ring 0345 464 0079 or email us with a few photos. In a small place like Letcombe Regis, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
Why choose Mr Mastic in Letcombe Regis
- Any old sealant cut out fully, not covered over
- A 12-month guarantee on all work
- Neat joints and a tidy finish
- ARBOMaster approved applicator
Read our cost guide or our reviews.
New build mastic in Letcombe Regis: local notes
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Around Letcombe Regis, as everywhere, new build mastic is only as good as the preparation behind it.
Letcombe Regis is about 2 miles south-west of Wantage, in Oxfordshire. Jobs in Letcombe Regis get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Letcombe Regis is one of 443 places in Oxfordshire we cover. There’s also a page for Oxford, roughly 15 miles from Letcombe Regis.
All of OX12 is covered for new build mastic, from the main roads to the quietest streets. Whether your property is on Main Street, Greyhound Mews and Old Manor Court or a nearby road, we can help. We also cover East Challow (1 mile north), Letcombe Bassett (1 mile south-west), Childrey (1 mile north-west), West Challow (1 mile north-west) and Wantage (2 miles north-east). Further out, we also cover Oxford (15 miles north-east), Didcot (9 miles east), Abingdon-on-Thames (10 miles north-east), Witney (15 miles north), Carterton (15 miles north-west) and Faringdon (8 miles north-west).
Local landmarks in Letcombe Regis
We work in homes and buildings around St Mary's School, The Greyhound Public House and Betjeman Millennium Park and the streets around them. Nearby you’ll also find Williams F1 Grand Prix Collection (3.3 miles north-east). Not far away are Letcombe Valley and Chain Hill.
How we quote for new build mastic
For a quick quote, just ask. The main things that affect it are:
- The size of the job
- Working hours on commercial sites
- The type of sealant required
- How easy the joints are to reach
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we’ll talk you through it.
What we need to know
What to tell us when you ask for a quote:
- Where the job is, and your postcode
- Roughly how big the job is
- Whether it’s a home or a business
- What the problem is, such as mould, gaps, leaks or cracking
For new build mastic in Letcombe Regis, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
How the job changes by surface
Bathrooms and en suites
En suite showers are a common source of leaks into the room below. Resealing properly keeps water where it belongs.
Windows and doors
On new builds, external frame sealant can be patchy. It’s resealed with an exterior sealant suited to the frame and wall.