Surrey · England
New Build Mastic in Selsdon
Plot mastic for developers and snagging failed sealant in new homes for Selsdon, backed by a 12-month guarantee. Call for a quick quote.
- Cracked caulk along new skirting
- Messy sealant that spoils new finishes
- New-build shower sealant that has already split
How we handle new build mastic in Selsdon
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 is not put right, get in touch with us. We work on kitchens, show homes and plot handovers, and people most often call us about second-fix sealing on new plots and worktop and upstand sealant coming away.
Homes around Selsdon range from older cottages to newer houses, and their floors range just as widely, from timber that moves with the seasons to tiles laid on concrete. The sealant at skirtings and thresholds has to suit the floor it meets.
We stand behind the work with a one-year guarantee, so you are not left on your own once the job is done.
- Place
- Selsdon (CR2, CR0)
- Wider area
- Surrey
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Landlord and commercial work in Selsdon
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will give you a quote.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
The process
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take anything from a few hours to several days, depending on the number of plots. Parking around Selsdon is usually easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- 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.
- We tool every joint neatly and tell you when each area can be used.
How to prepare
- On commercial sites, let us know about site rules
- For indoor joints, keep the area dry beforehand if you can
- Move anything stored near the joints
How to get a quote
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we’ll explain what’s involved.
Related advice
How we quote for new build mastic
You’ll get a clear quote before work begins. It takes into account:
- The old material and how stubborn it is
- The number and length of the joints
- Working hours on commercial sites
- Any mould that needs treating
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What to tell us for a quote
To make quoting easier, please include:
- The rough size of the job
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
- Pictures of the joints, sent by email
There’s no standard price list. Instead, we send you a clear quote for your job. To arrange one, ring 0345 464 0079 or send us an email.
Common questions in Selsdon
Do you cover smaller places like Selsdon?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you work for landlords with property near Sanderstead station?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Who should fix failed sealant in a new build?
Start with your builder while their snagging or warranty period runs. After that, or if their repair keeps failing, we can do it with our 12-month guarantee.
Does someone need to be in?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Are you fully insured?
Yes. Full insurance covers our work.
How long does new build mastic take?
Typically it takes a few hours for most snagging lists, longer for a run of plots. Bigger jobs take longer, and we’ll say how long yours will take.
Can you do plot mastic on a new development?
Yes. Second-fix sealing in bathrooms, kitchens, frames and floors is part of what we do. Good preparation keeps snagging to a minimum.
Do you work through snagging lists?
Yes. Send us the sealant items on the list, with pictures if you can and we will give you a quote. We will flag anything that needs another trade.
New build mastic in Selsdon: local notes
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For new homes near Sanderstead station, it’s worth checking the sealant early, while snags are still fresh.
Selsdon is about 2 miles south-east of Croydon, in Surrey. Whether you are in the middle of Selsdon or further out, new build mastic is available for homes and businesses alike. Selsdon is one of 395 towns and villages in Surrey we cover. You can also see our page for London, roughly 11 miles from Selsdon.
Work in CR2 and CR0 works the same way as everywhere else we cover. We cover properties on York Road, Byron Road and Abbey Road. Other places close to Selsdon include Forestdale (1 mile east), Addington (1 mile north-east), Sanderstead (1 mile south-west), Coombe (1 mile north-west) and Farleigh (2 miles south-east). We also work in nearby towns such as Epsom (9 miles west), Horley (13 miles south-west), Redhill (9 miles south-west), Ewell (9 miles west), Reigate (10 miles south-west) and Caterham (4 miles south).
Around Selsdon
Typical jobs here are in homes near The Sir Julian Huxley pub, The Quest Academy and Littleheath Woods and the streets around them. The nearest railway station is Sanderstead station, about 1.7 miles west of the centre. Nearby you’ll also find St George's Walk (2.7 miles north-west) and Croydon Airport Visitor Centre (2.9 miles west). Not far away are Duppas Hill and Bramley Bank.
Towns and villages near Selsdon
What else we do in Selsdon
DIY sealant or a professional job?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
How to look after the new joints
After the cure time, these simple habits help:
- Ventilate bathrooms well, especially in the first year
- Avoid running a DIY bead over the old one
- Keep water off fresh sealant until it has cured
- Act quickly if a seal starts to leak
Don’t stand on the bath edge or the lip of the tray. If a bath or tray moves when you stand in it, get it looked at.
Report failed sealant to the builder while you are in the snagging period. Once it ends, the repair may be down to you, so raise it early.
When to call us in Selsdon
The wrong product is sometimes used in the wrong place: caulk where water collects, or a rigid product on a moving joint. Neither lasts long.
If you can see any of these, it’s time to have the joints looked at:
- Joints pulling apart as timber shrinks
- Kitchen sealant that has pulled off the wall
- Sealant work across a run of new homes
- Cracked caulk along new skirting
In and around Selsdon, 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 they find a problem under the old sealant
- Whether all the old sealant comes out first
- How the joint is cleaned and prepared
What happens if it’s left?
A hairline gap at a skirting can wait, but a leaking seal can’t. If you’re unsure which you have, ring 0345 464 0079 or drop us an email with pictures and we’ll tell you. In an older home around Selsdon, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
A failed joint rarely gets cheaper to fix by waiting. If you are unsure, call 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Why book with us
- A choice of colours where the product allows
- Arbo and Everbuild products
- Fully insured
- An ARBOMaster approved applicator
Read our cost guide and customer reviews.