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

Commercial Sealant Contractors in New Street

Our CSCS-carded applicators take on sealant work for offices, shops, hotels and other commercial buildings in New Street. Send details for a fixed quote.

  • Damp patches where an external joint has failed
  • Smeared sealant across finishes from a rushed job
  • A top-up bead over failed sealant, now lifting
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS & Constructionline
£5m public liability

Commercial sealant contractors for New Street sites

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Commercial sealant contractors around New Street: what changes locally

Central London is about 21 miles from New Street. The South East around the capital has large numbers of business parks, offices and retail centres, especially around the motorway corridors. Firms with branches across the South East can use one contractor for every site. New Street is in the South East, one of the UK’s drier regions. External joints still need dry faces and the right temperature, and damp or frosty mornings can hold work up.

If you have premises on more than one site, say at Bowes Industrial Centre and Heaver Farm Trading Estate, one contractor and one quote can cover both. Offices and shops close to stations such as Meopham station, 2.4 miles to the north of New Street, tend to be busy all day, so sealant work is planned around opening hours.

New Street is about 6 miles south of Northfleet, in Kent. New Street sits inside our coverage and the rest of Kent, with the same fixed quotes and 12-month guarantee as everywhere else. Across Kent, 931 places are covered, including New Street. Sites around London have their own page, roughly 21 miles from New Street.

We cover the TN15 postcode districts. If your building is just outside New Street, we cover Ridley (1 mile west), South Street (1 mile east), Hodsoll Street (1 mile south-west), Culverstone Green (1 mile south-east) and Priestwood Green (1 mile east). Further afield, our area takes in Maidstone (10 miles south-east), Dartford (8 miles north-west), Sevenoaks (8 miles south-west), Royal Tunbridge Wells (15 miles south), Gravesend (6 miles north) and Tonbridge (11 miles south).

Landmarks near New Street

Recent enquiries here include premises near Meopham School and Trosley Country Park. New Street’s nearest station is Meopham station, about 2.4 miles north. A little further out are Ightham Court (4.6 miles south-west) and Coldrum Long Barrow (2.7 miles south-east).

Map of New Street © OpenStreetMap contributors

Sealant applicators in New Street

Commercial occupiers rarely want a floor out of action for sealant work. Work is scheduled around the site hours and access windows you give us; phasing keeps some washrooms, kitchens or entrances available while others are done. It’s the same approach in offices, retail units, hotels, schools and healthcare buildings. If you are dealing with damp patches where an external joint has failed and a top-up bead over failed sealant, now lifting, we can put it right, on kitchen worktops and splashbacks, movement joints in walls and floors and washrooms and tea points alike. A single leaking joint is often how a building in New Street first comes to us: we look at the rest while we’re there and tell you what we find.

Quotes for commercial sealant in New Street can come from photos and a joint schedule, or from a walk-round, with the scope listed so everyone knows what’s included.

Business units in the countryside around places like New Street are often converted barns, stables or farmyards. Old masonry beside new aluminium, timber and plasterboard gives plenty of joints between materials that move differently.

Building owners and contractors get the same cover: twelve months on the work we carried out. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
New Street (TN15)
Region
Kent
Cover
12 months on our workmanship
Quotes
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026

Site staff or a sealant specialist?

Redoing a failed joint typically costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.

What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.

FAQs: New Street

Is New Street too far out for you?

No. Small places get the same service as large ones. London and every South East county are within our area. Send photographs and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Do you offer colour-matched sealant for buildings in New Street?

Yes, we can normally get close to most finishes from the product’s colour range. The quote lists the colours the product is made in.

How do you keep disruption to occupiers down?

Most of the buildings we work in stay occupied. Only the area being sealed is closed, and the sequence is agreed in advance, until its cure time has passed.

Is the old sealant taken out first?

Every failed bead is cut out completely. New sealant can’t grip the old bead, so laying over it never lasts, and the faces are brought back to sound, dry material before resealing.

How long does a job like this take?

That varies with the scale of the job, but 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 bigger or phased jobs, we’ll set out a timescale with the quote.

Are you CHAS accredited?

Yes. We are CHAS accredited and a Constructionline member.

Do you work for facilities managers and managing agents?

Yes. A large share of our work comes through facilities managers, managing agents and landlords, alongside main contractors. We can work to your instruction process and site rules.

On site: what to expect

Site rules come first: sign-in, induction and whatever permit system the building uses. Once we are cleared to begin, we take the joints in the sequence agreed with you, and each area is checked before we leave it. Jobs in and around smaller places like New Street are usually planned as a single visit, so we ask for photographs and rough sizes first. That way the right products come on the day.

  1. We start with the evidence: photos, drawings or a look on site.
  2. A fixed quote follows, with removal and preparation included.
  3. Sequence, access and working times are settled before the first joint is touched.
  4. The failed sealant comes out and the faces are prepared, with primer where required.
  5. Depth is set with backing, then the sealant is applied, tooled and the area tidied.
  6. Completed areas are signed off with you under our 12-month guarantee.

What we need from you

  • Explain the parking and delivery arrangements
  • Make sure the joints can be reached
  • Tell us which areas need to stay in use

Request a 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, phone 01277 525 020 or email the details over.

Get a quick quote

Advice

What sealant work can’t fix

A few problems need another trade or a different fix, and we say so rather than covering them up:

  • A failed roof covering or waterproofing membrane
  • Suspect materials that need testing and specialist removal
  • Structural cracks or movement the joints weren’t designed for

If in doubt, phone 01277 525 020 or email the details over and we’ll say what we think.

What we seal

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

Why it’s worth doing now in New Street

Reactive resealing, a leak at a time, tends to cost more overall than a plan. Planning the work across a year or a portfolio means fewer separate visits and a predictable spend. We’ll suggest an order, worst sealant joints first. Halls, stores and units around places like New Street may not be checked every day, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.

We don’t publish prices, because the scope varies so much from one building to the next. Call for a quote.

Why appoint us

  • Over 20 years of commercial sealing
  • Clear, fixed quotes
  • Old sealant cut out, never sealed over
  • Colours confirmed for the specified product

Take a look at our cost guide or our accreditations.

Do you need commercial sealant contractors in New Street?

Plenty of failed joints were never sealed with the right product. Decorators’ caulk on a joint that moves, acetoxy silicone on stone or metal, or a stiff sealant on a facade. Guidance such as BS 6213 exists to steer sealant selection for exactly this reason, and many specifications refer to it.

Any of the following is a good reason to get the joints checked over:

  • Mouldy silicone around WCs, urinals and vanity tops
  • Shrunken sealant along kitchen worktops and splashbacks
  • Damp patches where an external joint has failed
  • Hardened, chalky sealant on south-facing or exposed elevations

Industrial estates such as Bowes Industrial Centre, 0.9 miles to the north-east of New Street, have offices, trade counters and welfare areas whose sealant ages like any other building’s.

Questions to ask before you book

  • Will CSCS-carded applicators be on site?
  • Their approach to joint depth and backing
  • Health and safety accreditation such as CHAS
  • How long is the guarantee, and what does it include?

Questions to ask before you appoint anyone

Aftercare for building managers

A few simple habits keep the new joints working:

  • On pre-2000 buildings, share the asbestos information before work starts
  • Log reseals in the O&M or maintenance records
  • Act on the first lifting edges rather than waiting
  • Check joints after other trades have worked nearby

Keep an eye out for other trades after we have gone. When fittings are moved or cabling added, the sealant nearby is easily disturbed and the joint gets left open. If that happens, give us a call on 01277 525 020 or use the quote form and we’ll price putting it right.

Once sealant fails in a movement joint, grit and debris get in. With nothing soft to close against, the materials either side take the load and start to break up. At that point it’s a repair job rather than a reseal.

Accreditations

Trusted. Accredited. Insured.