Surrey · England
Shellwood Cross New Build Mastic
Problem with your new-build sealant joints in Shellwood Cross? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Gaps behind new kitchen upstands
- Shower seals failing in the first year or two
- Messy sealant that spoils new finishes
How we handle new build mastic in Shellwood Cross
Across Shellwood Cross, we work for both new-home owners and the builders handing those homes over. Whether it’s one en suite or a run of plots, the method is the same: cut out, clean, prime where needed and reseal neatly. If you are dealing with sealant work across a run of new homes and internal frame sealant that has split, we can put it right, whatever the surface.
For a small place like Shellwood Cross, the journey and access are planned in advance, and once on site, the job is the same as anywhere.
Your job is guaranteed for a year, as with all our work.
- Where
- Shellwood Cross (RH2)
- Wider area
- Surrey
- Cover
- A year, on every job
- Quote
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What happens on the day
Good joint work is mostly preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes anything from a few hours to several days, depending on the number of plots. In a small place like Shellwood Cross, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out.
- We clean out the dust and grit left from the build.
- Primer goes on where the surface and product need it, then the new sealant.
- We tool every joint neatly and tell you when each area can be used.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Mention any leaks or damp you’ve noticed
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
If you are in Shellwood Cross and need new build mastic, ring 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you will get a clear quote before any work starts.
Advice
DIY sealant or a professional job?
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Places near Shellwood Cross
Other services in Shellwood Cross
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. Older cottages and farmhouses around Shellwood Cross can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or send us an email.
Why book with us
- Colour agreed with you before any work starts
- Tidy, careful work
- A choice of colours where the product allows
- Approved under the ARBOMaster scheme
Shellwood Cross questions
Do you work for landlords with property near Holmwood station?
Yes, we work for landlords and agents. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear quote.
Do you cover Shellwood Cross for new build mastic?
Yes. Our work covers London and the South East, and Shellwood Cross is part of that. You can ring 0345 464 0079 or drop us an email and tell us what needs doing.
What do you need from me for a quote?
The location, the problem and the rough size of the job. If you can, email a few pictures.
Do you use white or clear sealant?
It depends on the joint: white or clear for most sanitary joints, colours for worktops, floors and frames. We agree the colour before work begins.
Can you do plot mastic on a new development?
Yes. We take on second-fix sealant work across new plots. We clean and prime joints properly to keep callbacks down.
Should I go to my builder first?
Your builder, if you are still in their snagging or warranty period. After that, or if their repair keeps failing, we can do it.
Is it worth resealing while the house is still settling?
It depends on whether water is getting through. A leaking shower or bath seal should be redone right away, but cosmetic gaps can wait for movement to slow.
Can you reseal over the builder’s sealant?
No. New silicone won’t bond to old silicone, so it soon lifts and traps water. The old sealant always comes out first.
Keeping the joints in good condition
Aftercare is simple:
- Watch for new gaps as the house dries out
- Wipe joints with warm soapy water
- Open a window or run the fan after bathing
- Act quickly if a seal starts to leak
Watch the joints as the house settles. Small gaps can appear as the house dries.
The sooner you deal with untidy or cracking sealant, the less there is to put right. Small faults turn into leaks if left over time.
New build mastic around Shellwood Cross
London and the South East are among the drier parts 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 Holmwood station, it’s worth checking the sealant early, while snags are still fresh. Around Shellwood Cross, as everywhere, new build mastic is only as good as the preparation behind it.
Shellwood Cross is about 3 miles south-east of Dorking, in Surrey. Every kind of property in Shellwood Cross can book us for new build mastic. The work is guaranteed for a year. We cover 395 towns and villages across Surrey, large and small. Crawley is on our list too, about 7 miles from Shellwood Cross.
Our applicators cover all of the RH2 postcode area for new build mastic and the streets around it. We also cover Parkgate (1 mile south), Nalderswood (1 mile east), Newdigate (2 miles south), Norwood Hill (2 miles south-east) and Cudworth (2 miles south). We also work in nearby towns such as Guildford (14 miles west), Woking (15 miles north-west), Epsom (10 miles north), Horley (5 miles east), Redhill (5 miles north-east) and Ewell (11 miles north).
Near you in Shellwood Cross
We work in homes and buildings around Newdigate Brickworks, among other places. The nearest railway station is Holmwood station, about 2.5 miles south-west. A little further out are Reigate Priory Museum (3.8 miles north-east) and East Surrey Hospital (4.8 miles east). Not far away are Box Hill and Reigate Heath.
What affects the cost of new build mastic
There’s no set price list, because jobs vary so much. What we look at:
- How many areas need sealing
- The size of the job
- The product the joint needs
- How much old sealant there is and how hard it is to remove
What you pay reflects the work, not guesswork. That’s why we ask about the job first and send you a clear quote before work begins.
Asking for a quote
There’s no need for technical detail. Just tell us:
- Roughly how big the job is
- Access, such as stairs, a lift or height
- Photos by email, if that is easy
- Where the property is
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. When it suits you, phone 0345 464 0079 or send us an email.
How the job changes by surface
Plot handovers
Developers can send the plot schedule and specification for a quote. We seal bathrooms, kitchens, frames and floors.
Skirting and floors
Gaps under skirting are one of the most common new-build snags. We seal it with a flexible sealant that copes with the movement.
What we can’t put right
To be straight with you, there are a few things sealant won’t fix:
- Baths and trays that move too much for sealant to cope with
- Cracking that points to a structural problem
- Disputes or warranty claims with your builder
If you’re not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.
Where we work in Shellwood Cross
- Show homes
- Windows & doors
- Bathrooms & en suites
- Plot handovers
- Kitchens
- Skirting & floors