Surrey · England
New Build Mastic in Hersham
Our applicators work in Hersham on plot mastic for developers and snagging failed sealant in new homes. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- Internal frame sealant that has split
- Skirting joints opening in the first winter
- Plot mastic for developers ahead of handover
New build mastic in Hersham, done properly
A new build should have a neat, sound bead at every joint. When the finish is smeared, patchy or already cracking, it’s worth putting right early, before water reaches anything behind it. If you’re dealing with worktop and upstand sealant coming away and shower seals failing in the first year or two, we can help.
Where new homes go up in smaller places like Hersham, it’s often a small development or a single plot. Each still needs its sealant and floor joints finished properly from day one.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Where
- Hersham (KT12)
- Wider area
- Surrey
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What new build mastic looks like in Hersham
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you’ve bought a new home near Walton-On-Thames station, the sealant around baths, showers and frames is worth checking in the first year or two.
Hersham is about 1 mile south of Walton-on-Thames, in Surrey. Every kind of property in Hersham is covered for new build mastic, old or new, large or small. Every job comes with our 12-month guarantee. Hersham is one of 395 towns and villages in Surrey we cover for new build mastic. For nearby work, see our London page, about 16 miles away.
Work in KT12 is quoted and booked the same way as anywhere else. Whether your property is on Police Station Road, Queensway South and Queensway or a nearby road, our applicators can take on the job. Main roads around Hersham include the A244, which makes travel easy. Neighbouring places we cover for new build mastic include Burwood Park (1 mile south-west), Walton-on-Thames (1 mile north), Whiteley Village (2 miles south-west), St George's Hill (2 miles west) and Weybridge (2 miles west). We also work in nearby towns such as Guildford (11 miles south-west), Woking (8 miles south-west), Camberley (14 miles west), Epsom (6 miles east), Redhill (14 miles south-east) and Ewell (6 miles east).
What’s near Hersham
Locally, jobs take us to homes and businesses close to The Barley Mow Public House, West End Common and Three Rivers Academy, among other places. Hersham’s nearest station is Walton-On-Thames station, about 0.6 miles north-west of the centre. Other landmarks nearby include No. 2 New Zealand General Hospital (1.6 miles north-west) and Chessington Castle Hill (4.8 miles east). Open spaces near Hersham include Claremont Lake and Jubilee Wood.
What affects the cost of new build mastic
Call for a quick quote. What matters most is:
- The product the joint needs
- The number of rooms or windows
- Mould in or behind the old joints
- The old material and how stubborn it is
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
What to tell us for a quote
Photos help, but a description is a good start. Please mention:
- The type of property
- If someone has resealed it before
- A few pictures by email, if you can
- How many joints, rooms or windows are involved
Every job is quoted individually, so start by telling us what you need. Just phone 0345 464 0079 or email us with the details and send pictures if you have them.
FAQs for Hersham
Can you help a landlord with a rental near Walton-On-Thames station?
Yes, landlords and agents are among the people we work for. Just call 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear price.
Will you come out to Hersham?
Yes, Hersham is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you guarantee your work?
Yes: twelve months. If there’s a problem with our work in that time, tell us and we will put it right.
What do you put in the joint?
Products from Arbo and Everbuild, among others, picked for each joint. We’ll tell you what we are using and why.
When is the best time to reseal in a new build?
Any seal that is leaking should be redone right away. Cosmetic gaps can wait until the first year or two of movement has passed.
Will the old sealant be removed?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.
Can you work from my snagging list?
Yes. Snagging lists are a common starting point for us. We will go through the sealant items and agree what we’ll do.
When something else is needed
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Leaks from pipes, valves or wastes, which need a plumber
- Damaged fittings that need replacing
- Disputes or warranty claims with your builder
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think before booking.
What we seal
- Plot handovers
- Windows & doors
- Skirting & floors
- Show homes
- Bathrooms & en suites
- Kitchens
Work for landlords, hotels and businesses
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Letting agents often deal with us directly. Tell us the address, the job and how access works.
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Leave it or put it right?
A hairline gap at a skirting can wait, but water getting through can’t. If you are unsure which you have, ring 0345 464 0079 or drop us an email with pictures. In an older home around Hersham, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
Doing several joints on one visit usually makes better use of the time than several visits. We will send you a clear quote for the lot.
Why book with us
- We never seal over old sealant
- Arbo and Everbuild products
- More than 20 years in sealant work
- A choice of colours where the product allows
See our cost guide and our reviews.
Signs you need new build mastic in Hersham
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.
Signs it’s time to call us include:
- Sealant work across a run of new homes
- Kitchen sealant that has pulled off the wall
- Untidy sealant flagged on a snagging list
- New-build shower sealant that has already split
In and around Hersham, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Questions to ask before booking
- What guarantee comes with the work
- What the cure time is
- How the surfaces are prepared before sealing
- Is VAT in the price?
Nearby places to Hersham
More services for Hersham
How it works
We bring everything the job needs with us. Once we have agreed what’s being done, we protect the area and start. It normally takes a few hours in a single home. A visit to Hersham is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First we work through your snagging list or plot schedule with you.
- Failed or untidy sealant is cut out completely.
- We clean off dust from the build and prime the surfaces where the product needs it.
- New sealant suited to each joint is applied and tooled neatly.
- Finally, each room is checked and you are given the cure time.
Preparing for the visit
- Mention if the joints have been sealed before
- Move anything stored near the joints
- Try not to wet indoor joints just before the visit
Get a quote
Asking for a quote is easy: let us know the job and the location. A few pictures by email make the job easier to understand.