Surrey · England
New Build Mastic in Nalderswood
Plot mastic for developers and snagging failed sealant in new homes for householders, landlords and businesses in Nalderswood. Fully insured, ARBOMaster approved and guaranteed for a year.
- Gaps opening as the house dries out and settles
- Internal frame sealant that has split
- Shower seals failing in the first year or two
Honest limits
Before booking, it’s worth knowing the limits:
- Disputes or warranty claims with your builder
- Cracked trays, tiles or worktops
- Leaks from pipes, valves or wastes, which need a plumber
If in doubt, phone 0345 464 0079 or send us an email and we will say what we think.
Where we work in Nalderswood
- Skirting & floors
- Show homes
- Windows & doors
- Bathrooms & en suites
- Plot handovers
- Kitchens
New build mastic for homes and businesses in Nalderswood
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. Common call-outs are for sealant that never bonded to the surface and gaps between new skirting and floors, on windows & doors, plot handovers and kitchens.
Around Nalderswood, older homes often have timber floors that move through the year, which is why skirting and threshold joints need a flexible sealant, not filler.
Every job is covered by our 12-month guarantee.

- Location
- Nalderswood (RH2)
- Region
- Surrey
- Cover
- One year on every job
- Price
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Places near Nalderswood
Other services in Nalderswood
What new build mastic looks like in Nalderswood
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For new homes near Salfords station, it’s worth checking the sealant early, while snags are still fresh. Around Nalderswood, as everywhere, new build mastic is only as good as the preparation behind it.
Nalderswood is about 3 miles west of Horley, in Surrey. We carry out new build mastic for householders, landlords and businesses in Nalderswood and the surrounding area. 395 places in Surrey are on our list, from the larger towns to small villages. There’s also a page for Crawley, about 6 miles away.
Here we cover the RH2 postcode area for new build mastic. You will find streets such as Smalls Hill Road and Deanoak Lane. Close by, we work in Norwood Hill (1 mile south-east), Shellwood Cross (1 mile west), Parkgate (2 miles south-west), Cudworth (2 miles south-west) and Charlwood (3 miles south). Larger places within reach include Guildford (15 miles west), Epsom (10 miles north), Horley (3 miles east), Redhill (4 miles north-east), Ewell (11 miles north) and Reigate (3 miles north-east).
Local landmarks in Nalderswood
In Nalderswood, that means homes and buildings near Edolph's Copse and the streets around them. For rail, the closest station is Salfords station, about 3.4 miles east of the centre. A little further out are Reigate Priory Museum (3.3 miles north-east) and East Surrey Hospital (3.7 miles north-east). Green spaces nearby include Reigate Heath and Colley Hill.
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will quote.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
The process
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it usually takes a few hours in a single home. In a small place like Nalderswood, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- Joints are dried and primed where the product calls for it.
- New sealant goes in, with baths filled first so they’re at their heaviest.
- We check every joint and leave you with the cure times.
How to prepare
- For business premises, tell us about site rules or sign-in
- Tell us about any water getting in
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
Asking for a quote is easy: tell us what needs doing and where. A few photos by email make the job easier to understand.
Advice
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Do not wait for the house to settle if water is getting through
- Use the extractor fan every time you shower
- Wait for the cure time before using a resealed shower
- Photograph failed sealant before it’s redone
Ventilation matters in a new home, which is still drying out. Use the extractor fan or open a window after showers.
Mould takes hold quickly in sealant that has gaps or lifted edges. Dealing with it before it goes black keeps the job straightforward.
FAQs for Nalderswood
Will you come out to Nalderswood?
Yes, Nalderswood is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Is Nalderswood in your area for new build mastic?
Yes, Nalderswood is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or drop us an email and tell us what needs doing.
How long does the job take?
It depends on the size of the job, but most jobs take a few hours for most snagging lists, longer for a run of plots. We’ll tell you when we quote.
Do you work for hotels and businesses?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
Do you take on second-fix sealing for builders?
Yes. We take on second-fix sealant work across new plots. Good preparation keeps snagging to a minimum.
What should I tell you?
The location, the problem and the rough size of the job. If you can, email a few photos.
How long should I leave it?
Cure times vary by product. We tell you how long to leave it before we go.
Can I send you my snagging list?
Yes. Send us the sealant items on the list, with photos if you can and we will give you a quote. We will tell you if anything on it is not a sealant job.
What affects the cost of new build mastic
We quote each job individually. This is what makes a difference:
- How much old sealant there is and how hard it is to remove
- How easy the joints are to reach
- Any mould that needs treating
- How many areas need sealing
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first and agree the price before starting.
What we need to know
When you call or email, it’s useful to know:
- A few photos by email, if you can
- The type of property
- How many joints, rooms or windows are involved
- Where the job is, and your postcode
We quote each job on its own, so the first step is telling us about yours. Just call 0345 464 0079 or send us an email with the details, and photos are welcome.
How the job changes by surface
Windows and doors
Internal joints between frames and plaster often crack as a new house dries. We remove cracked sealant and apply a flexible one that suits the frame.
Skirting and floors
New homes often develop a gap between skirting and floor. A flexible sealant closes it without cracking like caulk.
What happens if it’s left?
It often makes sense to do all the sealant items on a snagging list together. It’s one visit, one quote and one set of cure times to plan around. Around Nalderswood, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part, and we will explain the quote if you ask.
Why us?
- We never seal over old sealant
- An ARBOMaster approved applicator
- Arbo and Everbuild products
- Sanitary silicone with an anti-fungal additive in wet areas
Read what affects the cost or what customers say.
