Greater London · England
New Build Mastic specialist in Uxbridge
New build mastic for Uxbridge and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Frame joints opening as the plaster dries
- Gaps behind new kitchen upstands
- Smeared, uneven beads picked up at snagging
Looking after it afterwards
A little care helps the new joints last. We recommend:
- Check bath and shower seals every few months as the house settles
- Do not seal over failed sealant yourself
- Keep pictures and emails about snagging items
- Keep water off fresh sealant until it has cured
Avoid standing on the rim of the bath or the edge of the tray while the sealant cures. Report any movement in a bath or tray.
If a shower tray or bath seal splits in the first year, look for movement. Have it resealed, and the tray or bath checked, before it gets worse.
New build mastic for homes and businesses in Uxbridge
Some new-home owners let the house settle before resealing. That makes sense for small gaps that are just cosmetic, but a failed shower or bath seal shouldn’t wait. If you’re dealing with leaking shower tray seals in a new home and gaps behind new kitchen upstands, we can put it right. As mastic and silicone sealant specialists, we take on new build mastic and every other kind of sealant job in Uxbridge.
From brand-new flats to converted terraces with new flooring, London has every kind of floor. Wherever a floor meets a wall, a skirting or a threshold, the joint has to allow for movement, in Uxbridge as anywhere.
A 12-month guarantee comes with the work, just as it does everywhere we cover.

- Place
- Uxbridge (UB8, UB10, UB9)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Quote
- A clear price before we start
- Call
- 07833 053749
- Page updated
- 26 October 2026
What affects the cost of new build mastic
For a quick quote, just ask. The main things that affect it are:
- Whether old sealant or filler has to be cut out
- The product the joint needs
- How many areas need sealing
- When we can work, for business premises
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What to tell us for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- The address or postcode of the job
- What’s wrong with the joints now
- How we’d reach the joints
- Photos by email, if that’s easy
There’s no standard price list. Instead, we give you a clear quote for your job. To arrange one, ring 07833 053749 or send us an email.
Why it’s worth doing now in Uxbridge
A failed shower or bath seal in a new home lets water into floors and walls that are still drying out. Dealing with it early keeps the damage away from ceilings, floors and finishes. Damp from a failed joint spreads quietly in older London brickwork and timber, and once it shows in Uxbridge, the repair is bigger than a sealant job.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please phone 07833 053749 or send us an email and we will talk you through it.
What you get with us
- Fully insured
- More than 20 years in sealant work
- A sealant colour to suit the surroundings
- 4.9 on Google from 180+ five-star reviews
See what affects the cost and customer reviews.
Places near Uxbridge
Also in Uxbridge
What new build mastic looks like in Uxbridge
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Many of London’s new homes are flats in bigger developments, where snagging may go through the developer or managing agent.
Uxbridge is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Uxbridge is about 3 miles north-west of Hayes, in Greater London. Anywhere in UB8, we can carry out new build mastic at your property. Our Greater London coverage runs to 786 places, Uxbridge among them.
Postcode districts we cover here for new build mastic: UB8, UB10 and UB9. New build mastic is available to properties on York Road, Lawn Road and How's Road. Uxbridge sits on or near the A4007. We also cover the places around Uxbridge: Cowley (1 mile south), New Denham (1 mile north-west), Hillingdon (1 mile east), Ickenham (2 miles north-east) and Yiewsley (2 miles south). Within a short drive, we also cover City of Westminster (14 miles east), Marylebone (14 miles east), Kensington (12 miles east), Hampstead (13 miles east), Ruislip (4 miles north-east) and Brompton (14 miles east).
Around Uxbridge
Locally, jobs take us to homes and businesses close to Three Tuns pub, West Middlesex College and Uxbridge High School. For rail, the closest station is West Drayton station, roughly 2.1 miles south of the centre. Nearby you will also find The Chimes (less than half a mile north) and Hillingdon Museum and Archives Services (within half a mile north). Not far away are Uxbridge Moor and Horse Shoe Bay.
Landlord and commercial work in Uxbridge
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can go on one quote.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
When it is not the sealant
We won’t take on work that will not last, so these are the limits:
- Plumbing faults behind the sealant
- Broken tiles or a split tray
- Cracking that points to a structural problem
If in doubt, call 07833 053749 or drop us an email and we will say what we think.
What we seal
- Bathrooms & en suites
- Show homes
- Windows & doors
- Skirting & floors
- Plot handovers
- Kitchens
Uxbridge: your questions answered
Can you do new build mastic in Uxbridge?
Yes. We work across London and the South East, and Uxbridge is part of that. You can call 07833 053749 or email us and tell us what needs doing.
Do you work for landlords with property near West Drayton station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can call 07833 053749 or email us with the details for a clear quote.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned before resealing.
Is it worth resealing while the house is still settling?
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.
What do you put in the joint?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Should I go to my builder first?
Report it to the builder first while you’re covered. Once that is done, or if they will not put it right, we can reseal it properly.
Do I need to be at home?
That depends on where the joints are. For work indoors, someone needs to let us in, and for outside work we’ll agree access with you when we book.
Is it normal for sealant to crack in a new home?
New homes dry out and move in their first couple of years, and sealant is often applied quickly onto dusty surfaces. Both lead to early failure.
How the visit works
Before we leave, we go over the finished joints with you and explain the cure time. The work normally takes a few hours in a single home, depending on the size of the job. For a job in Uxbridge, parking and access are the things to plan: let us know about parking, the floor we’ll be working on and any lift or shared entrance.
- Each joint is checked for movement before any work starts.
- We remove the failed sealant and clean the joints.
- We make sure the joints are dry and prime them if needed.
- Baths are filled with water, then the new sealant is applied.
- We check every joint and leave you with the cure times.
Preparing for the visit
- Keep pets and children clear of the area while we work
- Where the joints are inside, avoid wetting them before we arrive
- Mention any sign-in or site rules at work premises
Ask for a quote
For a quote, phone 07833 053749 or drop us an email with the location and a short description of the problem. We’ll give you a clear quote before any work starts.
Related advice
Common problems we fix in Uxbridge
The wrong product is sometimes used in the wrong place: caulk where water collects, or a rigid product on a moving joint. Both fail early.
Keep an eye out for these signs:
- Gaps behind new kitchen upstands
- Cracked sealant around new window and door frames
- Gaps opening as the house dries out and settles
- Sealant work across a run of new homes
If you’ve bought a new home near West Drayton station, the sealant around baths, showers and frames is worth checking in the first year or two.
Questions to ask before you book
- Whether all the old sealant comes out first
- How the colour is chosen
- What guarantee comes with the work
- Whether they’re fully insured
