Greater London · England
New Build Mastic in Tottenham
Specialist new build mastic for Tottenham: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Cracked sealant around new window and door frames
- Shower seals failing in the first year or two
- Worktop and upstand sealant coming away
New build mastic for homes and businesses in Tottenham
A new build should have a neat, sound bead at every joint. Smeared, patchy or cracked sealant is worth sorting early, before water reaches anything behind it. We work on skirting & floors, plot handovers and windows & doors, and the jobs we see most are frame joints opening as the plaster dries and shower seals failing in the first year or two.
Across London, commercial floors have movement joints that break down under heavy foot traffic, and new homes need their plot mastic finished properly before handover.
Our work is backed for twelve months.
- Where
- Tottenham (N17, N15, N18)
- Region
- Greater London
- Guarantee
- A year, on every job
- Quotes
- A clear price before work begins
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
How to look after the new joints
No joint lasts for ever, but care makes a real difference. A few tips:
- Do not seal over failed sealant yourself
- Look at the sealant regularly in the first couple of years
- Follow the cure time we give you
- Clean sealant with mild detergent, not abrasives
Keep pictures of the joints and any snagging correspondence with your builder. It helps if anything else comes up during the warranty period.
Early snagging is easier snagging. Left alone, a small crack can become a leak.
What happens on the day
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes anything from a few hours to several days, depending on the number of plots. 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 we work through your snagging list or plot schedule with you.
- The old bead comes out in full, with no layer left behind.
- Each joint is cleaned of dust and grit, then primed if required.
- We apply a sealant that suits each joint and tool it to a neat finish.
- Finally, each room is checked and you’re given the cure time.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Mention any leaks or damp you’ve noticed
- Try not to wet indoor joints just before the visit
Getting a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that is easy.
Advice
Tottenham: your questions answered
I let a flat near Bruce Grove station. Can you help?
Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear price.
Can parking be tricky for a visit in Tottenham?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. That way the visit can be planned around it.
Why does sealant fail so quickly in new builds?
A new house dries and settles for a year or two, and sealant is often applied quickly onto dusty surfaces. Either can make it fail early.
Do you remove the old sealant?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Who should fix failed sealant in a new build?
Start with the builder if you are in the snagging or warranty period. Once that is done, or if they will not put it right, we’ll cut it out and reseal it.
Do the sealants smell?
That depends on the sealant. Some smell for a while, some hardly at all.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Where are you based?
Mr Mastic is based in Crawley. We cover Tottenham and the rest of Greater London, along with the rest of our area.
When it isn’t the sealant
Before you book, it’s worth knowing the limits too:
- Structural cracks in walls or ceilings
- Plumbing faults behind the sealant
- Cracked trays, tiles or worktops
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly.
Where we work in Tottenham
- Windows & doors
- Bathrooms & en suites
- Show homes
- Kitchens
- Plot handovers
- Skirting & floors
Towns and villages near Tottenham
Other services in Tottenham
Different surfaces, different methods
Show homes
Bathrooms, kitchens and frames in show homes are sealed or resealed to a neat finish. Tell us when the home is open so we can plan around it.
Bathrooms and en suites
Trays and baths in new builds settle as they’re used. The joint is stripped back before the new bead goes in with baths filled first.
Joints and finishes in Tottenham homes
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Much of London’s new housing is flats in larger developments, where snagging may go through the developer or managing agent.
For new homes near Bruce Grove station, it’s worth checking the sealant early, while snags are still fresh.
Tottenham is about 6 miles north-east of Marylebone, in Greater London. If you need new build mastic in Tottenham, please phone 0345 464 0079 or drop us an email for a quick quote. We’re based in Crawley and cover Greater London. Tottenham is one of 764 places in Greater London where we work for new build mastic. We also work in London, about 7 miles from Tottenham.
We cover every part of N17, N15 and N18 for new build mastic and the streets around it. If you need new build mastic at a property on New Road, High Road and Reed Road or a nearby road, our applicators can take on the job. Tottenham sits on or near the A10, so getting to you is simple. Other places close to Tottenham include Broadwater Farm (1 mile west), Tottenham Hale (1 mile south-east), Tottenham Green (1 mile south), South Tottenham (1 mile south) and Seven Sisters (1 mile south). Within a short drive, we also cover London (7 miles south), City of Westminster (7 miles south-west), Marylebone (6 miles south-west), Kensington (9 miles south-west), St Pancras (5 miles south-west) and Shoreditch (5 miles south).
Local landmarks in Tottenham
Around Tottenham, our work takes us to homes and buildings near Bruce Castle Park, The John Loughborough School and Northumberland Park Community School and the streets around them. Tottenham has its own railway station: Bruce Grove station. Well-known places in the area include North Middlesex University Hospital (1.1 miles north) and Markfield Beam Engine and Museum (1.1 miles south). Not far away are Highgate Hill and Railway Fields.
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Why deal with it now?
It often makes sense to do all the sealant items on a snagging list together. It’s one visit, one quote and one set of cure times to plan around. In a flat in Tottenham, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we’ll explain the quote if you ask.
Why us?
- Anti-fungal silicone where joints get wet
- Homes, businesses and hotels
- More than 20 years in sealant work
- We leave the area clean and tidy
Read what affects the cost and our reviews.
What we’re called out for in Tottenham
Fresh sealant can be knocked or cut by trades finishing off. A bead disturbed before it has cured may never seal properly.
Keep an eye out for any of the following:
- Kitchen sealant that has pulled off the wall
- Leaking shower tray seals in a new home
- Cracked caulk along new skirting
- Gaps opening as the house dries out and settles
Tottenham is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
What your quote should include
- How long to leave it before use
- How much experience the applicator has
- Which sealant they’ll use, and why
- Whether all the old sealant comes out first