Greater London · England
New Build Mastic in Crews Hill
New build mastic for Crews Hill, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Sealant that never bonded to the surface
- New-build shower sealant that has already split
- Gaps between new skirting and floors
New build mastic in Crews Hill, done properly
If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. If you’re still within the builder’s snagging or warranty period, tell them first, and if it isn’t put right, get in touch with us. We work on show homes, plot handovers and bathrooms & en suites, and people most often call us about sealant work across a run of new homes and gaps behind new kitchen upstands.
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.
Each job carries a 12-month guarantee.
- Where
- Crews Hill (EN2)
- Region
- Greater London
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What affects the quote in Crews Hill
Call for a quick quote. What matters most is:
- Access and height
- Any mould that needs treating
- How many areas need sealing
- Any working-time requirements on site
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs. Call for a quick quote and we will explain what it covers.
What to tell us for a quote
When you contact us, it’s useful to know:
- What the problem is, such as mould, gaps, leaks or cracking
- How we’d reach the joints
- Any previous sealing or DIY work
- The address or postcode of the job
Every job is quoted individually. Just ring 0345 464 0079 or send us an email with the details.
The process
We bring everything the job needs with us. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take a few hours in a single home. 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.
- Each bead is tooled and the cure times explained.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- Let us know about parking restrictions
- Let us know about earlier repairs to the joints
How to get a quote
For new build mastic in Crews Hill, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Read more
Surface by surface
Bathrooms and en suites
New-build bathrooms and en suites are where sealant fails most often. We cut out the failed bead, clean and prime, and reseal with anti-fungal sanitary silicone.
Skirting and floors
As timber and screed dry, skirting and floors shift. We use a flexible product rather than caulk in a colour to suit.
Also near Crews Hill
Also in Crews Hill
When it is not the sealant
Sealant isn’t the answer to every problem, and we’d rather say so up front. It won’t solve:
- Baths and trays that move too much for sealant to cope with
- Deciding who is responsible under a builder’s warranty
- Damaged fittings that need replacing
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think before booking.
Surfaces we seal
- Skirting & floors
- Plot handovers
- Bathrooms & en suites
- Kitchens
- Show homes
- Windows & doors
FAQs for Crews Hill
I let a flat near Crews Hill station. Can you help?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
Can parking be tricky for a visit in Crews Hill?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.
How long will you be here?
Typically it takes a few hours in a single home. Bigger jobs take longer, and we’ll tell you how long to expect.
Can you work from my snagging list?
Yes. Photos of each sealant item help us quote. If something isn’t sealant, we’ll say so.
What sealant do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference.
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.
Do you take on second-fix sealing for builders?
Yes. We work through plots to your schedule. Get in touch with the number of plots and the scope and we will quote.
Will the old sealant be removed?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Why act early in Crews Hill
Small cosmetic gaps can wait for the house to settle, but water getting through can’t. Not sure whether yours can wait? You can phone 0345 464 0079 or email us with a few photos. In a flat in Crews Hill, 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.
The cost depends on the amount of work, how much old material has to come out and how easy the joints are to reach. We give a clear quote before any work starts, so you know where you stand.
Why us?
- Fully insured
- Colour picked to suit the job
- Over 20 years’ experience
- Tidy, careful work
See what affects the cost or our reviews.
New homes and floors in Crews Hill
Many of London’s new homes are flats in bigger developments, where snags may need reporting through the developer or the managing agent. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For new homes near Crews Hill station, it’s worth checking the sealant early, while snags are still fresh. Crews Hill is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Crews Hill is about 3 miles south-west of Cheshunt, in Greater London. Across the EN2 area, we can carry out new build mastic at your property. We cover 764 towns and villages across Greater London, large and small. Our London page covers work nearby (13 miles or so).
We work across the EN2 postcode area for new build mastic and the streets around it. New build mastic is available to properties on Rosewood Drive, Theobalds Park Road and Whitewebbs Road. If you are just outside Crews Hill, we cover Clay Hill (1 mile south-east), Gordon Hill (1 mile south-east), Bulls Cross (2 miles east), Forty Hill (2 miles south-east) and Enfield Chase (2 miles south). Within a short drive, we also cover London (13 miles south), City of Westminster (12 miles south), Marylebone (11 miles south), Kensington (13 miles south), St Pancras (11 miles south) and Shoreditch (11 miles south).
What’s near Crews Hill
Around Crews Hill, our work takes us to homes and buildings near Chace Community School and The Plough pub, among other places. Crews Hill has its own railway station: Crews Hill station. A little further out are Chase Farm Hospital (1 mile south) and Museum of Enfield (2.3 miles south). Open spaces near Crews Hill include Fir and Pond Woods and Bowyer's Water.
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. We suggest:
- Don’t seal over failed sealant yourself
- Record problems with dated pictures
- Wait for the cure time before using a resealed shower
- Ventilate bathrooms well, especially in the first year
Do not stand on the bath edge or the lip of the tray while the sealant cures. If a bath or tray moves when you stand in it, get it looked at.
Mould takes hold quickly in sealant that has gaps or lifted edges. Dealing with it before it goes black saves a harder job later.
DIY versus a professional finish
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.