Hertfordshire · England
New Build Mastic in Foxholes
New-build sealant joints in Foxholes need attention? We remove the old material, prepare the joints and seal them properly.
- Second-fix sealing on new plots
- Cracked caulk along new skirting
- Cracks appearing as a new home settles
FAQs for Foxholes
Do you work for landlords with property near Hertford East station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before work begins.
Do you cover Foxholes for new build mastic?
Yes, Foxholes is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job.
Do you do commercial work?
Yes. Larger jobs can be planned room by room or area by area.
Are you insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
When is the sealant fully cured?
It depends on the product and the temperature. Before we leave, we’ll tell you the cure time.
Will it make a mess?
No. The area is protected while we work and cleaned up afterwards.
Do the sealants smell?
Some sealants have a smell while they cure. Opening a window helps.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status and we are fully insured too.
New build mastic in Foxholes
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. Common call-outs are for second-fix sealing on new plots and beads laid onto grit and dust from the build, on skirting & floors, windows & doors and show homes.
In and around Foxholes, floors range from older timber boards to tiles and newer finishes, each moving in its own way. Skirting and threshold joints need a sealant that suits the floor.
Our work is backed for twelve months, in Foxholes and everywhere else we cover.
- Where
- Foxholes (SG13)
- Wider area
- Hertfordshire
- Cover
- One year on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What the job involves on each surface
Windows and doors
On new builds, external frame sealant can be patchy. It’s resealed with an exterior sealant suited to the frame and wall.
Show homes
Tired or marked sealant in a show home can be renewed. The old bead comes out and a clean new one goes in.
How the visit works
On the day, we start by going over the job with you, so there are no surprises. Surfaces next to the work are protected before any work begins. Most jobs take a few hours in a single home. For a job in Foxholes, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We start by going through the snagging items or plot schedule with you.
- 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.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- On commercial sites, let us know about site rules
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we will explain what’s involved before giving you a price.
Related advice
What we can’t put right
We won’t take on work that won’t last, so here’s what sealant can’t put right:
- Leaking fittings rather than failed sealant
- A tray or bath that isn’t properly supported, until it’s fixed
- Your warranty claim itself, which is between you and the builder
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we will tell you honestly.
What we seal
- Bathrooms & en suites
- Skirting & floors
- Windows & doors
- Plot handovers
- Kitchens
- Show homes
When to call us in Foxholes
Not every new-build joint gets the right sealant: caulk where water collects, or a rigid product on a moving joint. Neither lasts long.
People generally contact us when they notice something like this:
- Sealant work across a run of new homes
- Joints pulling apart as timber shrinks
- Worktop and upstand sealant coming away
- Internal frame sealant that has split
For new homes near Hertford East station, it’s worth checking the sealant early, while snags are still fresh.
Questions to ask before you book
- What happens if the job turns out different
- How the colour is chosen
- Who turns up on the day
- How the surfaces are prepared before sealing
Leave it or put it right?
Water getting past a failed seal in a new build reaches walls and floors that are still settling. Resealing promptly protects the new finishes around it. Homes in smaller places like Foxholes can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Leaving a failed joint normally makes the job bigger, not smaller. If you’re not sure whether it needs doing, phone 0345 464 0079 or send us an email for an honest opinion and a quote.
Why choose Mr Mastic in Foxholes
- More than 20 years in sealant work
- A 12-month guarantee on all work
- Sealant colour chosen to suit
- Approved under the ARBOMaster scheme
Take a look at our cost guide and our reviews.
Landlords, agents and businesses in Foxholes
In hotels, rooms out of use cost money, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
New homes and floors in Foxholes
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In and around Foxholes, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Foxholes is about 1 mile east of Hertford, in Hertfordshire. For new build mastic in and around Foxholes, it’s easy to get a quote: please phone 0345 464 0079 or email us. We’re based in Crawley and cover Hertfordshire, Foxholes included. Our Hertfordshire coverage runs to 381 places, Foxholes among them. We also work in London, about 20 miles from Foxholes.
Postcode districts we cover here for new build mastic: SG13. You’ll find streets such as Ware Road, London Road and Fairfax Road. Neighbouring places we cover for new build mastic include Rush Green (1 mile north-east), Hertford Heath (1 mile south-east), Hertford (1 mile west), Little Amwell (1 mile south-east) and Horns Mill (1 mile south-west). Further out, we also cover Stevenage (10 miles north-west), St Albans (12 miles west), Bishop's Stortford (10 miles north-east), Welwyn Garden City (6 miles west), Harpenden (13 miles west) and Hitchin (14 miles north-west).
Landmarks near Foxholes
We work in homes and buildings around Simon Balle All-Through School, The Saracens Head Public House and Hertford Regional College, among other places. For rail, the closest station is Hertford East station, roughly 0.8 miles north-west of the centre. Nearby you will also find Hertford County Hospital (1.5 miles west) and Mcmullen & Sons Brewery Museum (1.2 miles west). For a walk, there’s King's Meads.
Keeping the joints in good condition
So the new joints stay in good condition:
- Report sealant problems to your builder during the snagging period
- Keep photos and emails about snagging items
- Resist patching a failed seal with a tube from the DIY shop
- Wait for the cure time before using a resealed shower
Keep the bathroom ventilated, especially in the first year. Run the fan or open a window after bathing so moisture does not sit on the sealant.
Lifting sealant traps moisture and mould behind it. Resealing before mould gets in saves a harder job later.