Surrey · England
New Build Mastic in Wonersh
Professional new build mastic in and around Wonersh, with old sealant always removed completely.
- Messy sealant that spoils new finishes
- Worktop and upstand sealant coming away
- Frame joints opening as the plaster dries
Should I try it myself first?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
About our new build mastic in Wonersh
We never seal over a failed new-build bead. Fresh silicone cannot bond to the old layer, so the joint is cut out, cleaned, dried and resealed. If you’re dealing with leaking shower tray seals in a new home and kitchen sealant that has pulled off the wall, we can help.
Older homes in small places like Wonersh often have timber floors that move with the seasons, which is why skirting and threshold joints need a flexible sealant, not filler.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Place
- Wonersh (GU5)
- Wider area
- Surrey
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Leave it or put it right?
For developers, getting the sealant right first time saves return visits. Snagging visits for failed sealant cost time on every plot and most come down to preparation. Older cottages and farmhouses around Wonersh can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
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 email us for an honest opinion and a quote.
Why us?
- A 12-month guarantee on all work
- Over 20 years’ experience
- You choose the colour before work begins
- 180+ five-star Google reviews
Joints and finishes in Wonersh homes
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For new homes near Chilworth station, it’s worth checking the sealant early, while snags are still fresh. In and around Wonersh, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Wonersh is about 4 miles south of Guildford, in Surrey. Homes, rented property, offices and hotels in Wonersh can book us for new build mastic, old or new, large or small. The work is guaranteed for a year. We cover 395 towns and villages across Surrey, large and small. For nearby work, see our Crawley page (16 miles or so).
We work across the GU5 postcode area for new build mastic and the streets around it. Streets in the area include The Street, Woodyers Close and The Close. We also cover the places around Wonersh: Bramley (1 mile west), Shamley Green (1 mile south-east), Birtley Green (1 mile south), Stroud Common (2 miles south-east) and Grafham (2 miles south). Within a short drive, we also cover Guildford (4 miles north), Woking (8 miles north), Camberley (12 miles north-west), Epsom (15 miles north-east), Farnham (11 miles west) and Reigate (15 miles east).
Landmarks near Wonersh
Around Wonersh, our work takes us to homes and buildings near Shalford Mill, Broadwater School and The Grantley Arms Public House, among other places. The nearest railway station is Chilworth station, roughly 1.5 miles north-east. A little further out are Surrey Police Museum (2.6 miles north-west) and Guildford Castle (2.9 miles north-west). Open spaces near Wonersh include St Martha's Hill and Silent Pool.
What we do, step by step
On the day, there’s very little for you to do. Show us the job and we will take it from there. The job generally takes a few hours for most snagging lists, longer for a run of plots, including the tidy-up. Somewhere like Wonersh needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- 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.
- 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.
Getting ready for the visit
- Mention if the joints have been sealed before
- Try not to wet indoor joints just before the visit
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
Getting a quote is simple: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand.
Related advice
What sealant work can’t fix
We’d rather tell you now than do work that will not last, so here’s what sealant can’t put right:
- Cracking that points to a structural problem
- Damaged fittings that need replacing
- Movement caused by a poorly fitted tray or bath
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think.
Where we work in Wonersh
- Show homes
- Plot handovers
- Skirting & floors
- Bathrooms & en suites
- Windows & doors
- Kitchens
What else we do in Wonersh
What affects the cost of new build mastic
Jobs vary more than people expect. The main factors:
- The number of rooms or windows
- The product the joint needs
- Whether old sealant or filler has to be cut out
- How much there is to do
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we’ll talk you through it.
What to tell us for a quote
To help us quote quickly, please include:
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
- How many joints, rooms or windows are involved
- Photos by email, if that’s easy
Every job is quoted individually, so the first step is telling us about yours. Simply phone 0345 464 0079 or email us and describe the job and send pictures if you have them.
Landlords, agents and businesses in Wonersh
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
If you manage several properties in or around Wonersh, several properties can go on one quote. Just tell us the addresses and what each one needs.
Common questions in Wonersh
Do you cover Wonersh for new build mastic?
Yes, Wonersh 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.
Can you help a landlord with a rental near Chilworth station?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear quote.
Do you work for hotels and businesses?
Yes. We’ve worked for hotels, offices and other businesses.
Do you guarantee your work?
Yes. Every job comes with our one-year guarantee.
When is the sealant fully cured?
Different products cure at different speeds, so follow the cure time we give you when we finish.
Is it worth trying it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Can you do several jobs on one visit?
Of course. Combining jobs makes good use of the visit.
Do the sealants smell?
Some sealants have a smell while they cure. Opening a window helps.
Looking after it afterwards
So the new joints stay in good condition:
- Keep water off fresh sealant until it has cured
- Resist patching a failed seal with a tube from the DIY shop
- Check bath and shower seals every few months as the house settles
- Clean sealant with mild detergent, not abrasives
Wipe the sealant with warm soapy water. Keep scourers and harsh chemicals off it.
A seal that splits early is often a sign of movement. Getting it resealed properly, and any movement checked, stops it recurring.