Surrey · England
New-build mastic & snagging in Horley, Surrey
New-build sealant joints in Horley need attention? We cut out the old, prepare the joints and apply the right sealant.
- Cracked caulk along new skirting
- Smeared, uneven beads picked up at snagging
- Cracks appearing as a new home settles
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together.
New build mastic in Horley, done properly
We never seal over a failed new-build bead. New silicone will not bond to old silicone, so the joint is cut out, cleaned, dried and resealed. We work on show homes, plot handovers and skirting & floors, and people most often call us about leaking shower tray seals in a new home and worktop and upstand sealant coming away.
Homes around Horley move a little with the seasons, and skirting and floor joints show it first. A flexible sealant, rather than rigid filler, keeps those joints closed.
We stand behind the work with a 12-month guarantee, so you’re not left on your own once the job is done.
- Location
- Horley (RH6)
- Wider area
- Surrey
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Horley questions
Is Horley in your area for new build mastic?
Yes, Horley is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or email us with a few details of the job.
Is there a guarantee on new build mastic in Horley?
All our work, in Horley and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
How much does new build mastic cost in Horley?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we will talk you through it.
Can you quote for more than one area?
Yes, we can. More than one area can be quoted together.
When is the sealant fully cured?
Different products cure at different speeds, so please follow the time we give you.
Do the sealants smell?
Some sealants have a smell while they cure, but it fades. Opening a window helps.
Where do you work from?
We are a Crawley-based firm. Our area covers South East England, London and Scotland.
Is it normal for sealant to crack in a new home?
Lots of new homes see sealant crack early as timber and plaster dry out. Poor preparation at handover adds to it.
What affects the quote in Horley
Some jobs are bigger than they look, and some smaller. What affects the quote:
- When we can work, for business premises
- The type of sealant required
- How much there is to do
- The number of rooms or windows
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or drop us an email and we will talk you through it.
What to tell us for a quote
When you contact us, it’s useful to know:
- What the problem is, such as mould, gaps, leaks or cracking
- The type of property
- How we’d reach the joints
- How many joints, rooms or windows are involved
Every job is quoted individually, so start by telling us what you need. Just ring 0345 464 0079 or email us with the details and send pictures if you have them.
Places near Horley
Also in Horley
How the job changes by surface
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.
Plot handovers
Good preparation at handover saves snagging later. Dust from the build is removed first and primer used where needed.
Why act early in Horley
Resealing everything on a snagging list in one visit is generally simpler than chasing joints one at a time. It’s one visit, one quote and one set of cure times for the lot. Around Horley, failed sealant lets water into hidden places, like the floor under a bath, the back of a panel or the inside of a wall. Left alone, that means rot, damp and a bigger repair.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Why choose Mr Mastic in Horley
- Anti-fungal sanitary silicone in wet areas
- Quality sealants from Arbo and Everbuild
- White, clear, grey or another colour, product permitting
- 180+ five-star Google reviews
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 tell us about it when you ask for a quote.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
New build mastic in Horley: local notes
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Around Horley, as everywhere, new build mastic is only as good as the preparation behind it.
Horley is about 5 miles north of Crawley, in Surrey. Anywhere in RH6, our applicators can take on new build mastic. 395 places in Surrey are on our list, from the larger towns to small villages.
Here we cover the RH6 postcode area for new build mastic. If you need new build mastic at a property on Station Road, High Street and Church Road or a nearby road, we can help. Being close to the A23 and B2036, Horley is easy for our applicators to reach for new build mastic. Neighbouring places we cover for new build mastic include Hookwood (1 mile south-west), Fernhill (2 miles south-east), Burstow (2 miles south-east), Smallfield (2 miles east) and Shipley Bridge (2 miles south-east). Within a short drive, we also cover Epsom (12 miles north), Redhill (4 miles north), Ewell (13 miles north), Reigate (4 miles north), Caterham (8 miles north-east) and Dorking (8 miles north-west). Horley is one of the larger places we cover in Surrey.
What’s near Horley
Typical jobs here are in homes near The Bull pub and Oakwood School and the streets around them. The closest station to Horley is Horley station, about 0.8 miles south-east of the centre. Well-known places in the area include Reigate Castle (4.5 miles north) and East Surrey Hospital (2.8 miles north). The countryside around Horley includes Reigate Heath.
What we’re called out for in Horley
Baths and trays settle under load once the home is lived in. A bath sealed empty drops slightly when filled, straining the joint and can tear.
The most common problems we see are:
- Beads laid onto grit and dust from the build
- New-build shower sealant that has already split
- Kitchen sealant that has pulled off the wall
- Gaps between new skirting and floors
For new homes near Horley station, it’s worth checking the sealant early, while snags are still fresh.
Questions to ask before booking
- Who turns up on the day
- Whether they seal over old material or remove it
- Whether VAT is included
- Which colour the sealant will be
The process
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours in a single home. For a job in Horley, we need access to where the work is and somewhere nearby to park. For outside work, let us know about side access, gates and any upper-floor joints.
- We go through the snagging list or plot schedule and agree the joints to do.
- Failed or untidy sealant is cut out completely.
- Surfaces are cleaned of building dust and primed where needed.
- We apply a sealant that suits each joint and tool it to a neat finish.
- Each area is checked and left with its cure time.
Getting ready for the visit
- For indoor joints, keep the area dry beforehand if you can
- Mention any sign-in or site rules at work premises
- Keep children and pets away from the work area
Getting a quote
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.