Greater London · England
New Build Mastic in Pinner Green
New build mastic for Pinner Green, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Sealant work across a run of new homes
- Leaking shower tray seals in a new home
- Skirting joints opening in the first winter
What we’re called out for in Pinner Green
If plaster or screed was still damp when it was sealed, the bond suffers. Site programmes don’t always leave time for joints to dry first.
Most people get in touch after spotting something like this:
- Gaps opening as the house dries out and settles
- Internal frame sealant that has split
- Beads laid onto grit and dust from the build
- Leaking shower tray seals in a new home
As a London address, Pinner Green can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
Questions to ask before booking
- The length of the guarantee
- Is VAT in the price?
- When the joint can take water or movement
- How the surfaces are prepared before sealing
About our new build mastic in Pinner Green
Failed shower seals, gaps along the skirting and messy beads are common items on a new-home snagging list. If you’re still within the builder’s snagging or warranty period, tell them first and if that stalls, we can do it. We work on skirting & floors, windows & doors and kitchens, and people most often call us about shower seals failing in the first year or two and internal frame sealant that has split.
New flats are going up across London, many of them in larger developments. In a new development, snags are often reported through the developer or the managing agent, and shower seals that fail early, skirting joints that open up and gaps at thresholds are all common snags.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Place
- Pinner Green (HA5, HA6)
- Wider area
- Greater London
- Cover
- A year, on every job
- Quote
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Nearby places to Pinner Green
Other services in Pinner Green
Looking after it afterwards
So the new joints stay in good condition:
- Report sealant problems to your builder during the snagging period
- Look at the sealant regularly in the first couple of years
- Get a leaking seal dealt with straight away
- Avoid scourers and strong chemicals on sealant
Keep an eye on the joints over the first couple of years. Hairline gaps can open as timber and plaster dry, and they’re simple to reseal once movement has slowed.
A failed seal in a new home lets water into joists, plasterboard and ceilings. Catching it early keeps the fix to the sealant.
What new build mastic looks like in Pinner Green
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. Many of London’s new homes are flats in bigger developments, where snagging may go through the developer or managing agent.
If you’ve bought a new home near Hatch End station, the sealant around baths, showers and frames is worth checking in the first year or two.
Pinner Green is about 2 miles north-east of Ruislip, in Greater London. Pinner Green gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Pinner Green is one of 764 places in Greater London where we work. We also work in London, around 15 miles away.
Every address in HA5 and HA6 is covered for new build mastic. Whether your property is on Love Lane, Tudor Road and Chapel Lane or a nearby road, we can help. Other places close to Pinner Green include Pinner (1 mile south-east), Eastcote (1 mile south), North Harrow (2 miles south-east), Roxbourne (2 miles south) and Rayners Lane (2 miles south-east). We also work in nearby towns such as London (15 miles south-east), City of Westminster (12 miles south-east), Marylebone (12 miles south-east), Kensington (11 miles south-east), St Pancras (13 miles south-east) and Shoreditch (14 miles east).
Landmarks near Pinner Green
In Pinner Green, that means homes and buildings near The Oddfellows Arms, UTC Heathrow and Eastcote House Gardens and the streets around them. For rail, the closest station is Hatch End station, about 1.3 miles north-east. Well-known places in the area include Northwood and Pinner Cottage Hospital (0.9 miles north-west) and St. George's Shopping Centre (2.6 miles south-east). The countryside around Pinner Green includes Harrow Weald Common and Horse Shoe Bay.
How the visit works
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes anything from a few hours to several days, depending on the number of plots, and the area is left clean. For a job in Pinner Green, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- The failed sealant is removed completely.
- We clean out the dust and grit left from the build.
- We prime where needed and apply a sealant suited to each joint.
- Each bead is tooled and the cure times explained.
How to prepare
- Mention if the joints have been sealed before
- Let us know about stairs, lifts or work at height
- For business premises, tell us about site rules or sign-in
How to get a quote
We quote each job on its own. Just ring 0345 464 0079 or email us with the details.
Advice
What the job involves on each surface
Show homes
Show homes need sealant that looks right from day one. We lay neat, even beads in colours to suit the finishes.
Plot handovers
Developers can send the plot schedule and specification and we will quote. We seal bathrooms, kitchens, frames and floors as agreed.
Landlord and commercial work in Pinner Green
If you manage several properties in or around Pinner Green, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and photos by email help.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Pinner Green: your questions answered
Can you do new build mastic in Pinner Green?
Yes, Pinner Green is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job, and we’ll send you a clear quote.
I let a flat near Hatch End station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we’ll send you a clear quote.
How long should I leave it?
That depends on the sealant used, so follow the cure time we give you.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We will tell you what we’re using and why.
Do you work for developers?
Yes. Plot mastic and second-fix sealing for developers is part of our work. Send the schedule and any specification and we’ll give you a quote.
What colour sealant will you use?
Most bathroom joints are white or clear, but other colours are available. We match the colour to the finish.
Should I go to my builder first?
While the snagging or warranty period runs, the builder should be your first contact. If it isn’t sorted, or keeps failing, get in touch with us.
Why has my new-build shower seal failed already?
New homes dry out and move in their first couple of years, and sealant is often applied quickly onto dusty surfaces. Either can make it fail early.
What we can’t put right
It helps to know what we cannot do:
- Movement caused by a poorly fitted tray or bath
- Broken tiles or a split tray
- Leaks from pipes, valves or wastes, which need a plumber
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
Where we work in Pinner Green
- Bathrooms & en suites
- Windows & doors
- Plot handovers
- Kitchens
- Skirting & floors
- Show homes
What affects the cost of new build mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Any working-time requirements on site
- Any mould that needs treating
- How many rooms, windows or areas are involved
- How easy the joints are to reach
Combining jobs into one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll give you a clear quote for the lot.
Asking for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- What’s wrong with the joints now
- How we’d reach the joints
- If it’s domestic, commercial or a hotel
- Any previous sealing or DIY work
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or email us.