Kent · England
New-build mastic & snagging in Offham, Kent
Specialist new build mastic for Offham: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Cracked sealant around new window and door frames
- Sealant work across a run of new homes
- Kitchen sealant that has pulled off the wall
What affects the cost of new build mastic
Call for a quick quote. The main things that affect it are:
- Which sealant suits the joint
- The number of rooms or windows
- Access and height
- How much there is to do
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we’ll explain the quote if you ask.
Asking for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- The problem you’ve noticed
- Pictures of the joints, sent by email
- If it’s domestic, commercial or a hotel
- The address or postcode of the job
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved and give you a clear price.
New build mastic in Offham
We work in new homes and on new-build sites across Offham. One shower or a whole phase of plots, the method doesn’t change: cut out, clean, prime where needed and reseal neatly. We work on bathrooms & en suites, skirting & floors and kitchens, and common reasons people get in touch are shower seals failing in the first year or two and gaps opening as the house dries out and settles.
Older homes in small places like Offham often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Place
- Offham (ME19)
- Region
- Kent
- Cover
- 12 months on all our work
- Quote
- A clear price before we start
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Nearby places to Offham
What else we do in Offham
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Why it’s worth doing now in Offham
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. Around Offham, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why choose Mr Mastic in Offham
- Domestic, commercial and hotel work
- A sealant colour to suit the surroundings
- Anti-fungal sanitary silicone in wet areas
- We are fully insured
Take a look at our cost guide and our reviews.
Surface by surface
Windows and doors
On new builds, external frame sealant can be patchy. We reseal it with a weatherproof, flexible sealant.
Plot handovers
Plot mastic is carried out to the developer’s schedule. Each joint is cleaned and primed where needed to keep callbacks down.
Your questions about new build mastic in Offham
Do you cover Offham for new build mastic?
Yes, Offham is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear price.
Do you work for landlords with property near West Malling station?
Yes, landlords and agents are among the people we work for. Just ring 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.
Do you take out the old sealant first?
Yes, always, and completely. New sealant will not bond properly to old, so the joint is cleaned back first.
Will there be a smell?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
Can you do several jobs on one visit?
Yes. Just list everything you need.
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 work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
Is the work guaranteed?
Yes. There’s a 12-month guarantee on every job.
What new build mastic looks like in Offham
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In and around Offham, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint. For new homes near West Malling station, it’s worth checking the sealant early, while snags are still fresh.
Offham is about 7 miles west of Maidstone, in Kent. We carry out new build mastic for homeowners, landlords and businesses in Offham and nearby. Offham is one of 922 towns and villages in Kent we cover for new build mastic. There’s also a page for London, about 25 miles away.
Postcode districts we cover here for new build mastic: ME19. New build mastic is available to properties on Church Road, Pepingstraw Close and Teston Road. We also cover the places around Offham: Wrotham Heath (1 mile west), Comp (2 miles west), Kent Street (2 miles south), New Pound (2 miles south) and Herne Pound (2 miles south). We also work in nearby towns such as Maidstone (7 miles east), Dartford (12 miles north-west), Sevenoaks (8 miles west), Royal Tunbridge Wells (12 miles south-west), Gravesend (10 miles north) and Tonbridge (8 miles south-west).
Near you in Offham
Around Offham, our work takes us to homes and buildings near King's Arms Public House and Manor Park Country Park. Offham’s nearest station is West Malling station, roughly 1.9 miles east. Nearby you will also find Leybourne Castle (2.2 miles north-east) and Maidstone Hospital (4.8 miles east).
What we do, step by step
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours for most snagging lists, longer for a run of plots and we leave things clean and tidy. Somewhere as small as Offham, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We go through the snagging list or plot schedule and agree the joints to do.
- We cut out every bit of the failed or messy sealant.
- Each joint is cleaned of dust and grit, then primed if required.
- New sealant suited to each joint is applied and tooled neatly.
- Each area is checked and left with its cure time.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Tell us about any previous sealing or DIY attempts
- Tell us about access, such as stairs, a lift or high-level joints
Getting a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. Whenever you are ready, call 0345 464 0079 or send us an email.
Advice
Landlords, agents and businesses in Offham
We also work for property managers and facilities teams. We can quote a run of properties together, and we’re fully insured.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
When something else is needed
We’d rather tell you now than do work that will not last, so here’s what sealant can’t put right:
- Your warranty claim itself, which is between you and the builder
- Structural cracks in walls or ceilings
- Baths and trays that move too much for sealant to cope with
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before booking.
Joints and surfaces we work on
- Show homes
- Skirting & floors
- Windows & doors
- Plot handovers
- Bathrooms & en suites
- Kitchens