Kent · England
Grubb Street New Build Mastic
Professional new build mastic in and around Grubb Street, with old sealant always removed completely.
- Cracks appearing as a new home settles
- Sealant applied over dusty or wet surfaces
- Untidy sealant flagged on a snagging list
About our new build mastic in Grubb Street
We carry out plot mastic and second-fix sealing for builders, and snagging reseals for new-home owners. Both get the same care over preparation, because that is what rushed new-build sealant usually lacks. If you are dealing with gaps between new skirting and floors and plot mastic for developers ahead of handover, we can help, on bathrooms & en suites, plot handovers and skirting & floors alike.
For a small place like Grubb Street, the journey and access are planned in advance, and once on site, the job is the same as anywhere.
Big or small, you get the same one-year guarantee in Grubb Street and across Kent.
- Place
- Grubb Street (DA2)
- Wider area
- Kent
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What we do, step by step
At the end, we look at the finished work together and tell you how long to leave it. The visit itself normally takes a few hours in a single home, depending on the size of the job. Somewhere as small as Grubb Street, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- 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.
- 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.
Before we arrive
- Tell us if parking is tricky
- Let us know about stairs, lifts or work at height
- For business premises, tell us about site rules or sign-in
Get a quote
Asking for a quote is easy: let us know the job and the location and its rough size. Photos by email help us understand the job, and we will come back to you with a quote.
Advice
Quotes for new build mastic in Grubb Street
Jobs vary more than people expect. The main factors:
- Whether the work is at height
- The type of sealant required
- Mould in or behind the old joints
- The size of the job
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or drop us an email and we’ll talk you through it.
Asking for a quote
When you call or email, it’s useful to know:
- If someone has resealed it before
- Whether it’s a home or a business
- How many joints, rooms or windows are involved
- Where the property is
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.
Aftercare tips
Aftercare is simple, and it makes a real difference:
- Avoid running a DIY bead over the old one
- Act quickly if a seal starts to leak
- Record problems with dated photos
- Raise failed sealant with the developer while you’re covered
Wipe the sealant with warm soapy water. Keep scourers and harsh chemicals off it as they wear the bead.
If a shower tray or bath seal splits in the first year, look for movement. Getting it resealed properly, and any movement checked, stops it recurring.
Why deal with it now?
Water getting past a failed seal in a new build reaches walls and floors that are still settling. Dealing with it early keeps the damage away from ceilings, floors and finishes. In a small place like Grubb Street, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
What you get with us
- 20+ years of sealant experience
- Anti-fungal sanitary silicone in wet areas
- An ARBOMaster approved applicator
- Sealant colour chosen to suit
Take a look at our cost guide or what customers say.
Also near Grubb Street
Also in Grubb Street
What new build mastic looks like in Grubb Street
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.
Around Grubb Street, as everywhere, new build mastic is only as good as the preparation behind it.
Grubb Street is about 3 miles south-west of Northfleet, in Kent. Grubb Street gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our Kent coverage runs to 922 places, Grubb Street among them. We also work in London, about 17 miles from Grubb Street.
Jobs for new build mastic in DA2 is quoted and booked the same way as anywhere else. Other places close to Grubb Street include Green Street Green (1 mile north), Westwood (1 mile north-east), St Margarets (1 mile west), South Darenth (1 mile west) and Bean (1 mile north). Further out, we also cover Maidstone (14 miles south-east), Dartford (4 miles north-west), Sevenoaks (10 miles south-west), Gravesend (5 miles north-east), Tonbridge (14 miles south) and Northfleet (3 miles north-east).
Around Grubb Street
In Grubb Street, that means homes and buildings near Longfield Chalk Bank, Railway Tavern and Longfield Academy and the streets around them. The nearest railway station is Longfield station, about 1 mile south-east of the centre. Well-known places in the area include Stone Castle (2.6 miles north) and Darent Valley Hospital (2.3 miles north-west). Green spaces nearby include Sawyers Lake.
When to call us in Grubb Street
When the heating goes on in the first winter, the house dries fast. Skirting, frames and worktops pull away slightly and cracked sealant shows up.
The problems people usually mention when they call are:
- New-build shower sealant that has already split
- Beads laid onto grit and dust from the build
- Kitchen sealant that has pulled off the wall
- Gaps opening as the house dries out and settles
For new homes near Longfield station, it’s worth checking the sealant early, while snags are still fresh.
Comparing quotes
- What the cure time is
- Which sealant they’ll use, and why
- How hidden problems are handled
- How the colour is chosen
What the job involves on each surface
Kitchens
Beside the sink, the joint takes water every day. A kitchen sealant goes in there suited to the job.
Show homes
We seal show-home bathrooms, kitchens and frames. Tell us when the home is open so we can plan around it.
FAQs for Grubb Street
Do you cover Grubb Street for new build mastic?
Yes, Grubb Street is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or drop us an email and tell us what needs doing.
Do you cover smaller places like Grubb Street?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Will the old sealant be removed?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Can you do several jobs on one visit?
Yes. More than one area can be quoted together.
What information do you need?
Tell us what needs doing and where, plus pictures if you have them. If we need more, we will ask.
Will there be a smell?
There can be a smell while the sealant cures. Opening a window helps.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We’ll tell you what we’re using and why.
Do I need to be at home?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
DIY versus a professional finish
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.