
Construction and new-build mastic in Hartley, Kent
We carry out mastic packages for new-build and refurbishment projects in Hartley and the surrounding area. Send details for a fixed quote.
- Bath and shower joints scraped during the final clean
- Old sealant on a refurbishment that needs stripping before new work
- Missed perimeter joints on a new elevation
Construction mastic near Hartley
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
How we handle construction mastic in Hartley
Since 2005 we’ve worked alongside main contractors, developers and fit-out firms. We price from drawings and the specification, agree the sequence with the site team and seal as areas are released. For construction mastic on a scheme in Hartley, send drawings through our quote form, or phone or email us to talk it through. If you have frame perimeters left unsealed or poorly sealed and sealant knocked or painted over by other trades, we can help, whatever the surface. Looking for mastic applicators who cover Hartley? Mastic Doctor has worked for contractors, FMs and building owners since 2005.
For a site near Hartley, the mastic visit is planned so the right sealants, primers and backing rod are on hand, timed to the stage the job has reached. Drawings, photos and the programme let us give a fixed quote.
The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we’re clear about what is covered before work starts.

- Location
- Hartley (TN17)
- Region
- Kent
- Guarantee
- 12 months on every job
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
New build and refits around Hartley
Hartley lies roughly 39 miles out from central London. Towns within reach of London tend to keep building, from flats to offices and schools, and main contractors there need mastic that keeps to the programme. Hartley sits in one of the drier corners of the country, the South East. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, which is why external dates are agreed with the site manager.
Older buildings in the area around Hartley, such as Scotney Castle (4.4 miles west of Hartley), need care when sealed: the product has to suit soft or historic materials. Units on estates such as Hartley Dyke Business Centre, under half a mile north-east of Hartley, tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal.
Hartley is about 8 miles south-east of Paddock Wood, in Kent. Our applicators travel to Hartley for work on mastic packages. Hartley is one of 931 places we cover in Kent for mastic packages. Sites around Brighton have their own page, roughly 33 miles from Hartley.
If you need construction mastic in TN17, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. We cover commercial and managed buildings on Hartley Road, Campion Crescent and Hartley Court Gardens and the roads nearby. If your building is just outside Hartley, we cover Swattenden (1 mile east), Cranbrook (1 mile north-east), Baker's Cross (2 miles north-east), Gill's Green (2 miles south) and Beal's Green (2 miles south). Nearby towns on our patch include Maidstone (13 miles north), Royal Tunbridge Wells (11 miles west), Tonbridge (13 miles north-west), Kings Hill (14 miles north), Foley Park (14 miles north) and Paddock Wood (8 miles north-west).
Local landmarks in Hartley
Recent enquiries here include premises near Crane Valley. Nearby you’ll also find Benenden Hospital (4.7 miles east) and Sissinghurst Castle (3.8 miles north-east).
Towns and villages near Hartley
More services for Hartley
Common problems we fix in Hartley
On a live site, contamination is the biggest threat to a new joint. Plaster dust, release agents, protective film residue and damp all stop sealant bonding.
If one of these sounds familiar, it’s time for a closer look:
- Mastic snags holding up handover
- Caulk cracking where joints are moving more than expected
- External joints sealed in damp or cold conditions that are now failing
- Frame perimeters left unsealed or poorly sealed
Extensions at sites like Hawkhurst Community Hospital, 2.6 miles to the south of Hartley, normally sit beside working departments, and the mastic follows strict access rules.
What to look for in a quote
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- What site paperwork they can supply
- How the joint faces will be prepared and primed
- Will CSCS-carded applicators be on site?
Common questions from Hartley clients
Do you cover business parks and estates near Hartley, such as Hartley Dyke Business Centre?
Yes. Our area takes in Hartley and its surroundings, with estates and business parks such as Hartley Dyke Business Centre included. A few photographs and the unit address let us price the work.
Can you take on a job at a hospital such as Hawkhurst Community Hospital?
Yes, hospitals are one of the sectors we cover. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
How long does a typical visit take?
It depends on the scope, though a typical visit typically takes as long as the agreed sequence needs, which comes down to joint lengths, access and handover dates. For bigger or phased jobs, we’ll set out a timescale with the quote.
Do you seal on top of existing sealant?
No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.
Can you follow the specification on our project?
Yes. The specification and the manufacturer’s installation guidance are what we work to, and any queries are raised before we start.
How much does the work cost?
It depends on the job: the volume of work, the access, the specified product and how it’s phased. Call for a quote and we will price it properly.
Can the sealant be colour-matched?
That depends on the product. Some ranges offer many colours, others very few, so we’ll confirm the colours available for the specified product with the quote.
Aftercare for building managers
For the best life from the joints:
- Share drawings and the specification as soon as possible
- Allow flexibility for external sealing in damp or cold weather
- Bring the mastic contractor in after the last trades are through
- Protect sealed areas from following trades
Once an area is sealed, protect it from following trades. Fresh sealant needs its cure time before it’s cleaned, painted near or knocked, and that time depends on the product, temperature and joint depth.
Leaving the mastic snag list to the end squeezes everyone. Clearing snags area by area spreads the work out.
Our process
We schedule the visit to fit the site hours and access windows you give us. While we are working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. Smaller jobs around Hartley can be grouped with others nearby, which keeps travel down. You’ll have a fixed quote before work starts.
- First we look at the scope on site or from drawings.
- A fixed quote sets out scope, products and phasing.
- Site paperwork is confirmed and our CSCS-carded applicators are inducted.
- We seal plot by plot or floor by floor in line with the programme.
- Any frame gaps or issues outside our scope are flagged to the site team.
- Final snagging is completed and the 12-month guarantee applies.
Getting the site ready
- Share your working hours and any access restrictions
- Tell us which areas need to stay in use
- Make sure the joints can be reached
Get a fixed quote
Tell us about the building, the joints and when you need the work done, and we will put a fixed quote together. To get it moving, call the office on 01277 525 020 or email drawings and photos.
Read more
When it isn’t the sealant
A few problems need another trade or a different fix, and we point that out rather than sealing over them:
- Joints damaged after sign-off by following trades
- Faulty frames rather than failed sealant
- Frames fitted out of tolerance
If you’re not sure, just call 01277 525 020 or send details through our quote form and we’ll give you a straight answer.
Surfaces we seal
- Cladding and panel joints
- Sanitary and kitchen joints
- Internal decorators’ caulk
- Window and door perimeters
- Floor and skirting junctions
- Brick and block movement joints
For managing agents and facilities managers
Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, and each stage is agreed with your contact.
CHAS accredited and a Constructionline member, we make supplier vetting simple. We’re fully insured, and our insurance certificate can go with the quote.
Should maintenance staff do it?
General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class.
Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.