Surrey · England
New Build Mastic in Walliswood
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Walliswood and across Surrey. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Messy sealant that spoils new finishes
- Second-fix sealing on new plots
- Gaps between new skirting and floors
DIY versus a professional finish
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
New build mastic in Walliswood, done properly
Across Walliswood, we work for both new-home owners and the builders handing those homes over. One shower or a whole phase of plots, the method doesn’t change: remove, clean, prime where needed, then a neat new bead. Typical jobs include shower seals failing in the first year or two and sealant that never bonded to the surface, across skirting & floors, plot handovers and show homes.
In a village or hamlet like Walliswood, new homes are more likely to be a barn conversion or a handful of houses than a big estate. Each still needs its sealant and floor joints finished properly.
Big or small, you get the same 12-month guarantee in Walliswood and across Surrey.
- Place
- Walliswood (RH5)
- Wider area
- Surrey
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
For landlords and businesses
Letting agents and landlords in Walliswood can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
Letting agents often deal with us directly. Tell us the address, the job and how access works.
Your questions about new build mastic in Walliswood
I let a flat near Ockley station. Can you help?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Can you do new build mastic in Walliswood?
Yes. Our work covers London and the South East, and Walliswood is part of that. Just ring 0345 464 0079 or email us with a few details of the job.
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.
How long does the job take?
Most jobs take a few hours for most snagging lists, longer for a run of plots. We will confirm how long when we quote.
Where are you based?
We work from Crawley. We cover Walliswood and the rest of Surrey.
What information do you need?
The location, the problem and the rough size of the job. Photos by email help too.
My new home is still under warranty. Should I contact you?
Your builder, if you’re still in their snagging or warranty period. If that doesn’t work out, we’re happy to quote.
Can I do it myself?
That depends on the joint. 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.
Common problems we fix in Walliswood
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.
These are the problems we’re asked about most:
- Kitchen sealant that has pulled off the wall
- Leaking shower tray seals in a new home
- Sealant applied over dusty or wet surfaces
- Second-fix sealing on new plots
If you’ve bought a new home near Ockley station, the sealant around baths, showers and frames is worth checking in the first year or two.
Questions to ask before you book
- Whether the sealant suits the joint
- How the colour is chosen
- How the surfaces are prepared before sealing
- Whether they seal over old material or remove it
Different surfaces, different methods
Plot handovers
Developers can send the plot schedule and specification for a quote. We seal bathrooms, kitchens, frames and floors.
Windows and doors
Draughts around new frames are often a sealant gap. We check and reseal the frame edges.
What happens on the day
There’s no need to move everything out, just the space around the work. Everything nearby is protected, and the work takes a few hours for most snagging lists, longer for a run of plots for a typical job. Somewhere like Walliswood needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip 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, with no layer left behind.
- Joints are vacuumed and cleaned of building dust.
- We prime where needed and apply a sealant suited to each joint.
- Each bead is tooled and the cure times explained.
How to prepare
- Clear items away from the joints we’re working on
- Mention if the joints have been sealed before
- Keep children and pets away from the work area
Getting a quote
Asking for a quote is easy: let us know the job and the location. A few photos by email make the job easier to understand, and we will take it from there.
Related advice
What new build mastic looks like in Walliswood
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In and around Walliswood, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Walliswood is about 6 miles north-west of Horsham, in Surrey. For new build mastic in and around Walliswood, it’s easy to get a quote: please ring 0345 464 0079 or drop us an email. We’re based in Crawley and cover Surrey. Across Surrey, we cover 395 places, and Walliswood is one of them. Our Crawley page covers work nearby, about 9 miles away.
Work in RH5 works the same way as everywhere else we cover. You will find streets such as Horsham Road, Standon Lane and Oakfields, all of which we cover. If you are just outside Walliswood, we cover Mayes Green (1 mile north), Ewhurst Green (2 miles north-west), Ellen's Green (2 miles south-west), Ewhurst (2 miles north-west) and Cranleigh (4 miles west). Further out, we also cover Guildford (11 miles north-west), Woking (15 miles north-west), Epsom (15 miles north), Horley (11 miles east), Redhill (12 miles north-east) and Reigate (11 miles north-east).
Landmarks near Walliswood
Locally, jobs take us to homes and businesses close to Wallis Wood and The Scarlett Arms Public House and the streets around them. The closest station to Walliswood is Ockley station, roughly 3.1 miles north-east of the centre. A little further out are Abinger Castle (4.8 miles north) and Horsham Hospital (5.5 miles south-east). Open spaces near Walliswood include Vann Lake and Leith Hill.
What we cannot put right
We won’t take on work that won’t last, so here’s what sealant cannot put right:
- A tray or bath that isn’t properly supported, until it’s fixed
- Your warranty claim itself, which is between you and the builder
- Damaged fittings that need replacing
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly.
Where we work in Walliswood
- Kitchens
- Windows & doors
- Plot handovers
- Skirting & floors
- Show homes
- Bathrooms & en suites
Also near Walliswood
More services for Walliswood
Leave it or put it right?
If you are still in the builder’s snagging or warranty period, ask them to put it right first. If it keeps failing or isn’t dealt with, we can reseal it properly. Where a wall is exposed, as many are in small places like Walliswood, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you’re not sure whether it needs doing, phone 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
Why choose Mr Mastic in Walliswood
- A 12-month guarantee on all work
- Colour agreed with you before work begins
- Neat joints and a tidy finish
- White, clear, grey or another colour, product permitting
Read our cost guide and what customers say.