Essex · England
New Build Mastic in Foster Street
Specialist new build mastic for Foster Street: careful preparation, the right product and tidy work. Call for a quick quote.
- New-build shower sealant that has already split
- Gaps behind new kitchen upstands
- Plot mastic for developers ahead of handover
Foster Street: your questions answered
Can you help a landlord with a rental near Harlow Mill station?
Yes, we work for landlords and agents. Just call 0345 464 0079 or email us and tell us about the property, and we will send you a clear quote.
Is Foster Street within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Does someone need to be in?
We need access to the joints, so we will agree that with you when we book. Indoors, that generally means someone at home.
Should I try DIY first?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
How do I get a quote for new build mastic in Foster Street?
Size, access and the old material all affect the cost. Ask us for a quote.
Do you work through snagging lists?
Yes. Send the list and a few pictures of the sealant items, and we will quote. We’ll tell you if anything on it is not a sealant job.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover Foster Street and the rest of Essex.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
New build mastic in Foster Street, done properly
We never seal over a failed new-build bead. Fresh silicone can’t bond to the old layer, so it all comes out before we clean, dry and reseal. We work on plot handovers, windows & doors and skirting & floors, and common reasons people get in touch are worktop and upstand sealant coming away and gaps between new skirting and floors.
Around Foster Street, older homes often have timber floors that move through the year, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Foster Street (CM17)
- Region
- Essex
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Landlord and commercial work in Foster Street
If you manage several properties in or around Foster Street, several properties can go on one quote. Just tell us the addresses and what each one needs.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
Signs you need new build mastic in Foster Street
When the heating goes on in the first winter, the house dries fast. Skirting, frames and worktops pull away slightly.
People normally contact us when they notice something like this:
- Sealant work across a run of new homes
- Sealant that never bonded to the surface
- Untidy sealant flagged on a snagging list
- Cracked caulk along new skirting
In and around Foster Street, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- Whether the sealant suits the joint
- What happens if the job turns out different
- How long the guarantee is
- What the cure time is
The process
On the day, we start by going over the job with you. We protect the surfaces around the joints before work begins. The work normally takes anything from a few hours to several days, depending on the number of plots. Somewhere like Foster Street needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out down to clean surfaces.
- Joints are vacuumed and cleaned of building dust.
- Primer goes on where the surface and product need it, then the new sealant.
- Each bead is tooled and the cure times explained.
Before we arrive
- Plan for the work area to be out of bounds to pets and children
- Let us know if you’ve seen damp or leaks
- For business premises, tell us about site rules or sign-in
Ask for a quote
For a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We’ll send you a clear quote before any work starts.
Advice
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Leaking fittings rather than failed sealant
- Disputes or warranty claims with your builder
- Broken tiles or a split tray
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly before booking.
What we seal
- Plot handovers
- Kitchens
- Show homes
- Windows & doors
- Skirting & floors
- Bathrooms & en suites
Why it’s worth doing now in Foster Street
It often makes sense to do all the sealant items on a snagging list together. You get one visit and one clear quote for the lot. In a small place like Foster Street, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
What you pay reflects the work, not guesswork. That’s why we ask a few questions first and give you a clear quote before any work starts.
What you get with us
- Old sealant always removed completely
- Anti-fungal silicone where joints get wet
- Colour agreed with you before work begins
- We’re fully insured
Take a look at what affects the cost or what customers say.
Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Quotes for new build mastic in Foster Street
Your quote is based on your job. We look at:
- The type of sealant required
- Any working-time requirements on site
- How much old sealant there is and how hard it is to remove
- How much there is to do
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all play a part.
Helping us quote
When you call or email, these details help:
- What the problem is, such as mould, gaps, leaks or cracking
- Where the job is, and your postcode
- The rough size of the job
- If it’s domestic, commercial or a hotel
Every job is quoted individually, so start by telling us what you need. Simply phone 0345 464 0079 or drop us an email and describe the job, and photos are welcome.
Towns and villages near Foster Street
Other services in Foster Street
Joints and finishes in Foster Street homes
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. Foster Street is part of Harlow, one of the post-war new towns. Harlow has kept growing, with newer neighbourhoods added to the original town, so brand-new homes and homes from the post-war decades sit within a short drive of each other. Newer homes need snagging; older ones need their joints renewing.
For new homes near Harlow Mill station, it’s worth checking the sealant early, while snags are still fresh.
Foster Street is about 2 miles east of Harlow, in Essex. Every kind of property in Foster Street can book us for new build mastic. Every job comes with our 12-month guarantee. 644 places in Essex are on our list. Chelmsford is on our list too, about 14 miles from Foster Street.
All of CM17 is within our area for new build mastic, from the main roads to the quietest streets. Whether your property is on Foster Street, Highfield Close and Hastingwood Park or anywhere close by, our applicators can take on the job. We also cover the places around Foster Street: Hastingwood (1 mile south), Newhall (1 mile north-west), Latton (1 mile west), Magdalen Laver (1 mile east) and Housham Tye (2 miles north-east). Larger places within reach include Chelmsford (14 miles east), Brentwood (11 miles south-east), Billericay (15 miles south-east), Loughton (9 miles south-west), Waltham Abbey (8 miles south-west) and Great Dunmow (12 miles north-east).
Landmarks near Foster Street
Locally, jobs take us to homes and businesses close to John Barleycorn Public House, Passmores Academy and Brays Grove, among other places. For rail, the closest station is Harlow Mill station, roughly 2.3 miles north-west of the centre. A little further out are Princess Alexandra Hospital (3 miles west) and Harlow Mill (2.4 miles north-west). Open spaces near Foster Street include Gernon Bushes.