Surrey · England
New-build mastic & snagging in Lower Kingswood, Surrey
Problem with your new-build sealant joints in Lower Kingswood? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Leaking shower tray seals in a new home
- Messy sealant that spoils new finishes
- Frame joints opening as the plaster dries
How we handle new build mastic in Lower Kingswood
Snagging sealant properly means taking the failed bead out completely. New silicone won’t bond to old silicone, so it all comes out before we clean, dry and reseal. If you’re dealing with internal frame sealant that has split and beads laid onto grit and dust from the build, we can put it right, whatever the surface.
Older homes in small places like Lower Kingswood often have timber floors that move with the seasons, which is why skirting and threshold joints need a flexible sealant, not filler.
All of our work is guaranteed for twelve months.
- Where
- Lower Kingswood (KT20)
- Region
- Surrey
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
When it is not the sealant
New sealant can’t fix everything, and we’ll tell you before we start. It will not solve:
- Plumbing faults behind the sealant
- Baths and trays that move too much for sealant to cope with
- Cracking that points to a structural problem
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly before booking.
Surfaces we seal
- Show homes
- Windows & doors
- Kitchens
- Skirting & floors
- Bathrooms & en suites
- Plot handovers
Quotes for new build mastic in Lower Kingswood
There’s no set price list. The quote depends on:
- The size of the job
- Whether old sealant or filler has to be cut out
- Any mould that needs treating
- Which sealant suits the joint
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part.
What to tell us for a quote
Photos by email are helpful but not essential. Please mention:
- What the problem is, such as mould, gaps, leaks or cracking
- Roughly how big the job is
- Photos by email, if that’s easy
- Access, such as stairs, a lift or height
Want a quote for new build mastic? Please call 0345 464 0079 or email us and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Leave it or put it right?
Water getting past a failed seal in a new build reaches walls and floors that are still settling. Resealing promptly protects the new finishes around it. Where a wall is exposed, as many are in small places like Lower Kingswood, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
Why choose Mr Mastic in Lower Kingswood
- Sealant colour chosen to suit
- Homes, businesses and hotels
- We’re fully insured
- One-year guarantee on every job
Read our cost guide and customer reviews.
Lower Kingswood: your questions answered
Do you cover Lower Kingswood for new build mastic?
Yes. Our work covers London and the South East, and Lower Kingswood is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear price.
I let a flat near Kingswood station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can be quoted together. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will send you a clear quote.
Do I need to be at home?
That depends on where the joints are. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
Where are you based?
Our base is in Crawley, and we work across South East England, London and Scotland.
Will there be a smell?
Some sealants have a smell while they cure. Opening a window helps.
Is it messy?
Tidy work is part of the job. We protect what’s around the joints, and we clear up when we are done.
How long does new build mastic take?
That depends on how much there is to do, but most jobs take a few hours for most snagging lists, longer for a run of plots. We will give you a better idea when we quote.
When is the best time to reseal in a new build?
For failed seals that let water through, the best time is now. For small cosmetic gaps, waiting until the house has settled can save doing them twice.
For landlords and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will quote.
If you manage several properties in or around Lower Kingswood, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.
Can I do it myself?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
The process
On the day, we look over the joints with you first. We protect the surfaces around the joints before any work begins. The work normally takes a few hours in a single home. Somewhere like Lower Kingswood 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.
- Each joint is checked for movement before we start.
- We remove the failed sealant and clean the joints.
- 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
- On commercial sites, let us know about site rules
- Tell us about access, such as stairs, a lift or high-level joints
- Try not to wet indoor joints just before the visit
Get a quote
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or email us.
Related advice
Surface by surface
Bathrooms and en suites
Baths, showers, basins and trays in new bathrooms are the most common new-build reseal. The old sealant comes out and anti-fungal sanitary silicone goes in after cleaning and priming.
Kitchens
Worktops in new homes can move slightly as the house dries, opening gaps behind the upstand. We reseal them with a flexible sealant.
Other services in Lower Kingswood
Joints and finishes in Lower Kingswood homes
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For new homes near Kingswood station, it’s worth checking the sealant early, while snags are still fresh. In and around Lower Kingswood, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Lower Kingswood is about 3 miles north of Reigate, in Surrey. We carry out new build mastic for homes and businesses in Lower Kingswood and nearby, as part of our work across Surrey. Our area takes in 395 places across Surrey, large and small. Crawley is on our list too, around 11 miles away.
Here we cover the KT20 postcode area for new build mastic. We cover properties on Tealby Close, Orchard Way and Brighton Road. Neighbouring places we cover for new build mastic include Margery (1 mile south-east), Mogador (1 mile south-west), Kingswood (1 mile north), Walton on the Hill (1 mile west) and Tadworth (2 miles north-west). Larger places within reach include Epsom (5 miles north-west), Horley (7 miles south), Redhill (3 miles south-east), Ewell (6 miles north), Walton-on-Thames (11 miles north-west) and Caterham (5 miles east).
Local landmarks in Lower Kingswood
Locally, jobs take us to homes and businesses close to Eyhurst Park, The Sportsman pub and St Bede's School, among other places. The nearest railway station is Kingswood station, about 1.5 miles north. Nearby you’ll also find Walton on the Hill (1.6 miles north-west) and The Belfry (3 miles south-east). Open spaces near Lower Kingswood include Mercers Lake and Reigate Heath.