Greater London · England
Pinner New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes in Pinner, with a one-year guarantee on every job. Ask us for a quote.
- Joints pulling apart as timber shrinks
- Gaps behind new kitchen upstands
- Second-fix sealing on new plots
The process
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The job generally takes a few hours in a single home from start to finish. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. If the building has a concierge, managing agent or access rules, tell us when you book.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- 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.
- We tool every joint neatly and tell you when each area can be used.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- Clear the area around the work
- Mention any parking rules near the property
Get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job. Whenever you’re ready, call 0345 464 0079 or email us.
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New build mastic in Pinner, done properly
Dust is the enemy of new-build sealant. Each joint is cleaned of dust and primed where the product calls for it, so the new bead bonds properly rather than sitting on a layer of grit. We’re often asked to deal with sealant applied over dusty or wet surfaces and leaking shower tray seals in a new home, on plot handovers, skirting & floors and bathrooms & en suites.
Shops, offices and commercial units across London have hard-wearing floors with movement joints that need resealing as they wear, while new homes need a neat, sound finish around frames, baths and kitchens before handover, in Pinner and beyond.
Your job is guaranteed for a year, as with all our work.
- Location
- Pinner (HA5)
- Region
- Greater London
- Cover
- 12 months on all our work
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Do you need new build mastic in Pinner?
If plaster or screed was still damp when it was sealed, the bond suffers. On a busy site, joints aren’t always given time to dry before the sealant goes on.
Look out for any of the following:
- Gaps opening as the house dries out and settles
- Sealant work across a run of new homes
- Cracked sealant around new window and door frames
- Cracked caulk along new skirting
For new homes near Hatch End station, it’s worth checking the sealant early, while snags are still fresh.
Before booking anyone
- What guarantee comes with the work
- How the colour is chosen
- Whether all the old sealant comes out first
- Who does the work, and how experienced they are
Common questions in Pinner
Is Pinner in your area for new build mastic?
Yes, Pinner is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.
Do you work for landlords with property near Hatch End station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can phone 0345 464 0079 or drop us an email with the details for 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, and for outside work we will agree access with you when we book.
Where are you based?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
When is the best time to reseal in a new build?
That depends on the joint. Failed seals in wet areas need doing now, but cosmetic gaps can wait for movement to slow.
Do you guarantee your work?
Yes. All our work carries a 12-month guarantee.
How long will you be here?
That depends on how much there is to do, but as a guide it takes anything from a few hours to several days, depending on the number of plots. We will tell you when we quote.
Can you match the sealant colour to my new kitchen or bathroom?
It depends on the joint: white or clear in most bathrooms, and a colour to suit worktops, frames and floors elsewhere. We agree the colour before any work starts.
How the job changes by surface
Bathrooms and en suites
Trays and baths in new builds settle as they’re used. We reseal once the old bead is fully out with baths filled first.
Skirting and floors
Wet-area floor joints need a flexible seal. They get a flexible, water-resistant sealant.
What new build mastic looks like in Pinner
Many of London’s new homes are flats in bigger developments, where snagging may go through the developer or managing agent. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
As a London address, Pinner can be tricky for parking: let us know about parking bays, permits or a driveway.
Pinner is about 1 mile north-east of Ruislip, in Greater London. Whether you’re in the middle of Pinner or further out, we cover new build mastic for every kind of property. We cover 764 towns and villages across Greater London, large and small. London is on our list too, around 14 miles away.
Jobs for new build mastic in HA5 is quoted and booked the same way as anywhere else. New build mastic is available to properties on Love Lane, Tudor Road and Marsh Road and the roads around them. Neighbouring places we cover for new build mastic include Pinner Green (1 mile north-west), Eastcote (1 mile south), North Harrow (1 mile south-east), Roxbourne (1 mile south) and Rayners Lane (2 miles south-east). We also work in nearby towns such as London (14 miles south-east), City of Westminster (12 miles south-east), Marylebone (12 miles south-east), Kensington (10 miles south-east), St Pancras (13 miles east) and Shoreditch (14 miles east).
Local landmarks in Pinner
In Pinner, that means homes and buildings near Pinner High School, Heathfield School and The Oddfellows Arms, among other places. Pinner’s nearest station is Hatch End station, about 1.4 miles north-east. Other landmarks nearby include Northwood and Pinner Cottage Hospital (1.3 miles north-west) and St. George's Shopping Centre (2.3 miles east). For a walk, there’s Horse Shoe Bay and Northala Fields.
Towns and villages near Pinner
More services for Pinner
How we quote for new build mastic
We quote each job individually. These are the things that affect it:
- The number of rooms or windows
- Mould in or behind the old joints
- The number and length of the joints
- How easy the joints are to reach
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we will go through it with you.
What we need to know
You don’t need to know the technical terms. Just tell us:
- If someone has resealed it before
- How many joints, rooms or windows are involved
- What’s wrong with the joints now
- How we’d reach the joints
Want a quote for new build mastic? Please phone 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.
Landlords, agents and businesses in Pinner
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
We work for landlords and agents as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.
Can I do it myself?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
What sealant work cannot fix
Before booking, it’s worth knowing the limits too:
- Cracking that points to a structural problem
- Disputes or warranty claims with your builder
- Movement caused by a poorly fitted tray or bath
If you’re not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.
Where we work in Pinner
- Windows & doors
- Skirting & floors
- Show homes
- Plot handovers
- Kitchens
- Bathrooms & en suites