The Mastic Doctor team standing beside their branded vans outside an office building
Kent · England

Sealant applicators in New Ash Green

Planning work on a sealant joint in New Ash Green? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Untidy joints in a reception, shop floor or lobby
  • Hardened, chalky sealant on south-facing or exposed elevations
  • Water staining near frames, panels or ceilings
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Commercial sealant contractors near New Ash Green

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Commercial sealant contractors in New Ash Green, done properly

Having a single contact for all your sites makes sealant far simpler to manage. We take on one-off reseals, runs of jobs across a portfolio and planned maintenance programmes, run the same way on every site: send details, get a fixed quote, we seal, and a 12-month guarantee once it’s signed off. To get a programme moving in New Ash Green, speak to us on 01277 525 020 or email drawings and photos with the site addresses. We work on window and door perimeters, floor and threshold joints and kitchen worktops and splashbacks, and what we’re called in for most is damp patches where an external joint has failed and smeared sealant across finishes from a rushed job. Facilities teams, main contractors and managing agents in New Ash Green tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

If you look after more than one building near New Ash Green, the work can be planned as one programme, so standards and paperwork match across every site.

A job in a smaller place like New Ash Green is usually a single building. We plan the visit so everything on the list is done in one go, with the right products and colours on hand.

Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we’re upfront about that.

The Mastic Doctor team standing beside their branded vans outside an office building
Where
New Ash Green (DA3, TN15)
Wider area
Kent
Cover
A 12-month guarantee
Price
Quoted before any work starts
Call
01277 525 020
Updated
3 November 2026

Commercial clients in New Ash Green

Main contractors use us as their sealant subcontractor, on new build and refurbishment alike. We work to your programme, your specification and your site rules, and our applicators hold CSCS cards.

We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Sites in New Ash Green can sit alongside others in a wider programme.

Questions we’re asked in New Ash Green

Can you supply sealant in our brand colour for a site in New Ash Green?

Yes, sealants come in a wide range of standard colours, and matching to RAL references, cladding, stone or frames is a common request. The quote lists the colours the product is made in.

Will you take on work at estates like Heaver Farm Trading Estate, close to New Ash Green?

Yes. Our area takes in New Ash Green and its surroundings, with estates and business parks such as Heaver Farm Trading Estate included. To start, just phone 01277 525 020 or email the details over with the unit, the joints involved and your access times.

Which sealant will you use?

A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

Can you take on work for an FM or managing agent?

Yes. Use our quote form to send the site details, or phone or email us, and we will confirm any paperwork you need with the quote.

Do you hold CHAS accreditation?

Yes. We’re CHAS accredited, we are a Constructionline member and we use CSCS-carded applicators.

Do you work in New Ash Green?

Yes. We take on work across New Ash Green.

Can you work to our specification?

Yes. Send it with your enquiry, and the quote will be based on it.

Surface by surface

Commercial kitchens and tea points

Kitchen joints along worktops, sinks, splashbacks and wall cladding collect grease and moisture. They’re degreased thoroughly before resealing.

Washrooms and toilets

Mould that has grown into washroom sealant can’t usually be cleaned out. The lasting answer is removal, preparation and a new sanitary bead, room by room if that suits the building.

From enquiry to sign-off

When we get to site, we sign in, go through any site induction and check how permits are handled. Floors, finishes and fittings next to the joints are covered before anything is cut or cleaned, and the work typically takes anything from part of a day on a short run of joints to several weeks on a large phased package. For a building around New Ash Green, tell us how to find it and who will meet us. Send that with the details and we will confirm the plan with the quote.

  1. First, details come to us: photographs, drawings or a schedule of the areas.
  2. We work out why the joints have failed and fix a quote for the agreed scope.
  3. We plan around your site hours and access windows, phasing the work where areas have to stay in use.
  4. Failed sealant is cut out and each joint cleaned back to sound, dry faces.
  5. We fit backing to the right depth, prime where specified and lay the new bead.
  6. Finished joints are checked with you and handed over with our 12-month guarantee.

Preparing the site

  • Tell us what induction or permit system the site runs
  • Point out parking and an unloading spot
  • Share your working hours and any access restrictions

Get a fixed quote

Tell us about the building, the joints and when you need the work done, and we’ll put a fixed quote together. The easiest way is to call 01277 525 020 or use the quote form.

Get a price

Related advice

Shops, offices and hotels in and around New Ash Green

At least three named trading, business or retail sites lie within about 3 miles of New Ash Green. Tenant changes on such sites bring fit-outs, and fit-outs bring new joints. The South East is one of the drier parts of the UK. External joints still need dry faces and the right temperature, and damp or frosty mornings can hold work up.

Occupiers with premises at both Heaver Farm Trading Estate and Bowes Industrial Centre could have the sealant at each handled under one quote. On estates like Heaver Farm Trading Estate, which lies south-west of New Ash Green, the office and welfare end of each unit has its own sealant to maintain. Offices and shops close to stations such as Longfield station, 2.1 miles to the north of New Ash Green, tend to be busy all day, so sealant work is planned around opening hours.

New Ash Green is about 5 miles south of Northfleet, in Kent. Anywhere in DA3, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. New Ash Green is one of 931 places we cover in Kent for sealant joints. Sites around London have their own page, about 20 miles away.

Work on sealant joints is covered throughout DA3 and TN15, for business premises of every kind. For a building on Church Road, Upper Street North and Upper Street South or nearby, we can quote for sealant joints. Nearby places we also cover include Ridley (1 mile south-east), Hartley (1 mile north), New Street (2 miles south-east), Hodsoll Street (2 miles south-east) and Longfield Hill (2 miles north-east). Nearby towns on our patch include Maidstone (12 miles south-east), Dartford (6 miles north-west), Sevenoaks (8 miles south-west), Gravesend (5 miles north-east), Tonbridge (12 miles south) and Northfleet (5 miles north).

What’s near New Ash Green

Locally, jobs take us to sites close to The White Swan Public House, Longfield Academy and Rectory Meadow and the streets around them. The nearest railway station is Longfield station, about 2.1 miles north. Well-known places in the area include Eynsford Castle (4 miles west) and Darent Valley Hospital (5.2 miles north-west).

Map of New Ash Green © OpenStreetMap contributors

Why it’s worth doing now in New Ash Green

Spot repairs have their place. Where the remaining sealant is just as old, it tends to fail soon after, so access and set-up end up being paid for twice. We can price both options so you can decide on the facts. One visit to deal with every failing joint makes more sense than several trips to a place like New Ash Green. Send photos of each area and we will quote for the lot.

Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a fixed quote.

Why appoint us

  • Sealing commercial buildings since 2005
  • A range of standard colours, depending on the product
  • CHAS accredited
  • One contact handling all your sites

Take a look at how commercial sealant jobs are priced or our accreditations and insurance.

When something else is needed

Honesty saves time and money. New sealant won’t cure:

  • Structural cracks or movement the joints weren’t designed for
  • Leaking roofs, gutters or flat-roof membranes (those need a roofer)
  • Old mastic that tests positive for asbestos

If you are not sure, just call 01277 525 020 or send details through our quote form and we will give you a straight answer.

Where we work in New Ash Green

  • Washrooms and tea points
  • Floor and threshold joints
  • External facade joints
  • Movement joints in walls and floors
  • Window and door perimeters
  • Kitchen worktops and splashbacks

General trades versus a specialist

Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong usually costs more in the end than doing them right.

A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

Accreditations

Trusted. Accredited. Insured.