Kent · England
New Build Mastic in Hazelwood
Problem with your new-build sealant joints in Hazelwood? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Gaps behind new kitchen upstands
- Gaps opening as the house dries out and settles
- Gaps between new skirting and floors
Why act early in Hazelwood
DIY kits do not solve the main problems with new-build sealant: grit, unprimed surfaces and old layers underneath. Proper removal and preparation are what make it last. Where a wall is exposed, as many are in small places like Hazelwood, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you’re unsure, phone 0345 464 0079 or email us and we will give you an honest view and a quote.
Why choose Mr Mastic in Hazelwood
- Sealant colour chosen to suit
- We never seal over old sealant
- Arbo and Everbuild products
- Approved under the ARBOMaster scheme
Take a look at what affects the cost or our reviews.
New build mastic in Hazelwood
Some owners wait for the first year’s movement before having joints redone. For small cosmetic gaps, that’s reasonable, but a seal that is letting water through needs doing now. We work on skirting & floors, windows & doors and bathrooms & en suites, and people most often call us about shower seals failing in the first year or two and skirting joints opening in the first winter.
Somewhere as small as Hazelwood, new homes tend to be conversions, self-builds or a few houses rather than an estate. Each still needs its sealant and floor joints finished properly.
All of our work is guaranteed for twelve months.
- Location
- Hazelwood (TN14)
- Wider area
- Kent
- Cover
- A year, on every job
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How the visit works
At the end, we look at the finished work together and explain the cure time. The work normally takes a few hours for most snagging lists, longer for a run of plots, depending on the size of the job. Somewhere like Hazelwood needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
How to prepare
- Mention any parking rules near the property
- Mention any tricky access
- Keep children and pets away from the work area
Get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you are ready, phone 0345 464 0079 or email us.
Related advice
When something else is needed
To be straight with you, there are a few things sealant won’t fix:
- 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, ring 0345 464 0079 or send us an email and we’ll say what we think.
What we seal
- Plot handovers
- Bathrooms & en suites
- Show homes
- Windows & doors
- Kitchens
- Skirting & floors
What the job involves on each surface
Windows and doors
Draughts around new frames are often a sealant gap. We look at the joints and reseal where needed.
Bathrooms and en suites
En suite showers are a common source of leaks into the room below. Resealing properly keeps water where it belongs.
For landlords and businesses
We work for landlords and letting agents as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
New homes and floors in Hazelwood
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you’ve bought a new home near Chelsfield station, the sealant around baths, showers and frames is worth checking in the first year or two.
Hazelwood is about 4 miles south of Orpington, in Kent. Jobs in Hazelwood get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Hazelwood is one of 922 towns and villages in Kent we cover. We also work in London, about 14 miles from Hazelwood.
Here we cover the TN14 postcode area for new build mastic. Local streets include Hazelwood Road, Cudham Lane North and Spinney Way. We also cover the places around Hazelwood: Downe (1 mile west), Luxted (1 mile south-west), Cudham (1 mile south), Single Street (1 mile south-west) and Green Street Green (1 mile north-east). We also work in nearby towns such as Dartford (10 miles north-east), Sevenoaks (6 miles south-east), Gravesend (15 miles north-east), Tonbridge (13 miles south-east), Northfleet (14 miles north-east) and Swanley (6 miles north-east).
Around Hazelwood
Typical jobs here are in homes near George and Dragon pub and Green Street Green Primary School and the streets around them. For rail, the closest station is Chelsfield station, about 2.1 miles north-east of the centre. A little further out are Orpington Hospital (2.1 miles north-east) and Crofton Roman Villa (2.7 miles north). The countryside around Hazelwood includes Betsom's Hill and Downe Bank Nature Reserve.
What affects the cost of new build mastic
Every job gets its own quote. These are the things that affect it:
- When we can work, for business premises
- The number of rooms or windows
- The product the joint needs
- Access and height
The cost depends on how much there is to do, how much old material has to come out and access to the work. We give a clear quote before work begins.
Helping us quote
When you call or email, these details help:
- The problem you’ve noticed
- Whether it’s a home or a business
- Roughly how big the job is
- Any previous sealing or DIY work
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
What we’re called out for in Hazelwood
Once people move in, baths and trays take weight and bed down. If a bath wasn’t filled when it was sealed, the bead is stretched the first time it’s used and the sealant may split.
Common reasons people contact us are:
- Frame joints opening as the plaster dries
- Plot mastic for developers ahead of handover
- Smeared, uneven beads picked up at snagging
- Beads laid onto grit and dust from the build
Around Hazelwood, as everywhere, new build mastic is only as good as the preparation behind it.
Comparing quotes
- How the joint is cleaned and prepared
- What guarantee comes with the work
- Whether you can choose the colour
- What product goes in the joint
Nearby places to Hazelwood
Also in Hazelwood
Common questions in Hazelwood
Do you cover Hazelwood for new build mastic?
Yes, Hazelwood 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.
I let a flat near Chelsfield station. Can you help?
Yes, we work for letting agents and landlords. You can phone 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before we start.
Are you fully insured?
Yes. Mr Mastic is fully insured.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us and we are fully insured.
Why does sealant fail so quickly in new builds?
It’s common, and there are generally two reasons: movement as the house dries and settles, and sealant laid onto dust without primer. A proper reseal deals with both.
Are you an approved applicator?
Yes. We’re approved under the ARBOMaster scheme.
Where do you work from?
We are a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.