Surrey · England
New Build Mastic in Walton on the Hill
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Walton on the Hill and across Surrey. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Kitchen sealant that has pulled off the wall
- Plot mastic for developers ahead of handover
- Leaking shower tray seals in a new home
New build mastic in Walton on the Hill
A new build should have a neat, sound bead at every joint. Smeared, patchy or cracked sealant is worth sorting early, before water reaches anything behind it. Typical jobs include skirting joints opening in the first winter and shower seals failing in the first year or two, across kitchens, plot handovers and skirting & floors.
Around Walton on the Hill, older homes often have timber floors that move through the year, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
Your job is guaranteed for a year, as with all our work.
- Place
- Walton on the Hill (KT20)
- Region
- Surrey
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
What new build mastic looks like in Walton on the Hill
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For new homes near Tadworth station, it’s worth checking the sealant early, while snags are still fresh.
Walton on the Hill is about 3 miles south-east of Ashtead, in Surrey. Walton on the Hill gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across Surrey, we cover 395 places, Walton on the Hill among them. We also work in Crawley, about 12 miles from Walton on the Hill.
Postcode districts we cover here for new build mastic: KT20. New build mastic is available to properties on Nursery Road, Deans Lane and Meadow Walk. Walton on the Hill sits on or near the B2220, so getting to you is simple. Close by, we work in Tadworth (1 mile north-east), Lower Kingswood (1 mile east), Headley (2 miles west), Kingswood (2 miles north-east) and Mogador (2 miles south-east). Further out, we also cover Guildford (14 miles west), Woking (14 miles west), Epsom (4 miles north), Horley (8 miles south-east), Redhill (4 miles south-east) and Ewell (5 miles north).
Local landmarks in Walton on the Hill
Locally, jobs take us to homes and businesses close to Betchworth Quarry and Lime Kilns, Chinthurst School and The Bell pub and the streets around them. Walton on the Hill’s nearest station is Tadworth station, roughly 0.9 miles north-east. Nearby you will also find Reigate Castle (3.3 miles south-east) and Headley Court (1.6 miles north-west). The countryside around Walton on the Hill includes Reigate Heath and Mercers Lake.
When something else is needed
We will not take on work that will not last, so these are the limits:
- Plumbing faults behind the sealant
- Disputes or warranty claims with your builder
- Damaged fittings that need replacing
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly.
What we seal
- Plot handovers
- Kitchens
- Windows & doors
- Bathrooms & en suites
- Show homes
- Skirting & floors
Surface by surface
Kitchens
Worktops in new homes can move slightly as the house dries, opening gaps behind the upstand. A fresh flexible bead closes them.
Skirting and floors
New homes often develop a gap between skirting and floor. A flexible sealant closes it without cracking like caulk.
What we do, step by step
There’s no need to move everything out, just the space around the work. Everything nearby is protected, and the job takes a few hours for most snagging lists, longer for a run of plots for a typical job. Somewhere like Walton on the Hill needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out down to clean surfaces.
- 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 about stairs, lifts or work at height
- Mention if the joints have been sealed before
- Tell us if parking is tricky
Getting a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Read more
Why it’s worth doing now in Walton on the Hill
Resealing everything on a snagging list in one visit is normally simpler than chasing joints one at a time. You get one visit and one clear quote to plan around. Where a wall is exposed, as many are in small places like Walton on the Hill, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
What you pay reflects the work, not guesswork. That’s why we ask a few questions first and agree the price before starting.
Why choose Mr Mastic in Walton on the Hill
- You choose the colour before work begins
- We are fully insured
- Any old sealant cut out fully, not covered over
- Trusted Arbo and Everbuild sealants
When to call us in Walton on the Hill
If plaster or screed was still damp when it was sealed, the bond suffers. On a busy site, joints aren’t always given time to dry before the sealant goes on.
Signs it’s time to call us include:
- Gaps behind new kitchen upstands
- Messy sealant that spoils new finishes
- Leaking shower tray seals in a new home
- Plot mastic for developers ahead of handover
In and around Walton on the Hill, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Questions to ask before you book
- What the quote includes, VAT included or not
- What happens if they find a problem under the old sealant
- When the joint can take water or movement
- Whether all the old sealant comes out first
Other services in Walton on the Hill
Common questions in Walton on the Hill
Can you do new build mastic in Walton on the Hill?
Yes, Walton on the Hill is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job.
Do you cover smaller places like Walton on the Hill?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you match the sealant colour to my new kitchen or bathroom?
Most bathroom joints are white or clear, but other colours are available. We match the colour to the finish and agree it with you.
Do you hold any approvals?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
What information do you need?
Just the basics: the address or postcode, what’s wrong and any access issues. Then ring 0345 464 0079 or drop us an email.
Should I wait before resealing?
It depends on whether water is getting through. Failed seals in wet areas need doing now, while small cosmetic gaps can wait a while.
Where are you based?
Our base is Crawley. We work across South East England, London and Scotland.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all.
How we quote for new build mastic
The price is agreed before any work begins. It takes into account:
- Whether the work is at height
- The number of rooms or windows
- The size of the job
- Whether old sealant or filler has to be cut out
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
Helping us quote
Photos help, but a description is a good start. Try to tell us:
- Pictures of the joints, sent by email
- Where the job is, and your postcode
- The problem you’ve noticed
- The type of property
For a quote, phone 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before we start.