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

Commercial sealant contractors in Charlwood, Hampshire

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

  • A top-up bead over failed sealant, now lifting
  • Wall and floor joints that have lost their seal
  • Water staining near frames, panels or ceilings
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
Constructionline member
£5m public liability

Commercial sealant contractors in Charlwood

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Diagnose, treat, sign off

The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. Then we strip out anything that has failed, prepare every joint and seal it. Smaller jobs around Charlwood can be grouped with others nearby, which keeps travel down. A fixed quote is given before anything starts.

  1. We begin with whatever information you have, whether that’s photos, a drawing or a list of locations.
  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. We strip the failed bead and prepare both faces of the joint.
  5. Backing and primer go in where needed, then the chosen sealant is applied and tooled.
  6. Each area is inspected, signed off and backed by our 12-month guarantee.

Preparing the site

  • Send any specification or drawings in advance
  • Explain the parking and delivery arrangements
  • For older buildings, check the asbestos register before work

Ask for a quote

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, give us a call on 01277 525 020 or use the quote form.

Get a price

Related advice

Commercial sealant contractors in Charlwood

How long a joint lasts is decided before any sealant leaves the gun. Silicone has no grip on cured silicone, so the failed bead is cut out completely, then both faces are cleaned back to sound, dry material with no dust or grease on them. Where the sealant maker specifies a primer for that substrate, it goes on before the new bead and the joint depth is controlled with backing rod. Most enquiries involve frame sealant that has cracked, shrunk or pulled away and gaps behind commercial kitchen worktops and sinks, on kitchen worktops and splashbacks, movement joints in walls and floors and window and door perimeters. Whether you call it commercial sealant work, mastic application or joint sealing, in Charlwood it comes down to the same thing: the right product in a properly prepared joint.

We price commercial jobs in Charlwood from photos, drawings or a site visit, with the scope listed so everyone knows what’s included.

Commercial sealant work around smaller places like Charlwood tends to mean pubs and restaurants, halls, farm shops and offices in converted farm buildings. Kitchens, toilets and window frames in all of them need resealing sooner or later.

Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and the quote explains what it covers.

Where
Charlwood (SO24)
Region
Hampshire
Guarantee
A 12-month guarantee
Quotes
Fixed quote, scope in writing
Telephone
01277 525 020
Last updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Surface by surface

Movement joints in walls and floors

Brickwork, blockwork and floor slabs all have movement joints that need a flexible seal. Failed seals let grit and water in, and the edges start to suffer. The joints are resealed using a sealant matched to the movement and any traffic.

Facade and cladding joints

Facade joints move every day as panels warm and cool. The product has to suit the movement, and the depth has to be controlled with backing. We confirm the access in place before we quote.

When to call us in Charlwood

Washrooms and kitchens wear sealant out in their own way. Constant moisture, cleaning chemicals and weak extraction let mould grow into the sealant; when mould is in the body of the sealant, no cleaner will shift it. Replacement with a sanitary anti-mould silicone is the lasting answer.

Look out for the following:

  • External beads that have gone brittle and cracked
  • Wall and floor joints that have lost their seal
  • Greasy, split joints in a kitchen or tea point
  • A top-up bead over failed sealant, now lifting

Occupiers with premises at both Mansfield Business Park and Lower Soldridge Business Park could have the sealant at each handled under one quote.

Questions to ask before you book

  • Proof of insurance
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • The named product and why it was chosen
  • Health and safety accreditation such as CHAS

Choosing a commercial sealant contractor

Should maintenance staff do it?

For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and we’ll confirm the paperwork you need with the quote.

Cost factors for sealant joints

The price varies from site to site. It mainly depends on:

  • Working within restricted access windows
  • How accessible the joints are
  • Joint width, depth and condition
  • Specialist products, such as fire-rated or hygienic sealants

Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits.

Before you send an enquiry

The more we know, the firmer the quote. When you get in touch, include:

  • A wide shot and a close-up of the area
  • Any specification or named product
  • What the building is and how it’s used
  • The site address and postcode

Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote that you can work with. If you have questions first, ring 01277 525 020 or send details through our quote form.

Work for main contractors and building owners

Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.

If you look after buildings for someone else, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.

Charlwood: questions and answers

Is Mansfield Business Park, near Charlwood, within your area?

Yes, sites like Mansfield Business Park are within our area, along with the rest of Charlwood. A few photographs and the unit address let us price the work.

Is Charlwood 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. We plan jobs in smaller places so return trips are kept to a minimum.

Do you check for asbestos before removing sealant?

It can, on some older buildings. So we check the register first and stop work on anything suspect until it’s tested. HSE guidance on asbestos is a useful reference.

Will the building have to shut during the work?

It’s normal for us to work in occupied buildings. We agree the order of areas, protect what’s nearby and close off only the section we’re sealing for as long as the cure needs.

How do you choose the sealant?

A specification, where there is one, decides it. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

Which site documents can you send us?

Send your site requirements with the enquiry, and the paperwork is confirmed with the quote. From you, we’ll need the asbestos information for older buildings and any site rules.

When is resealing likely to be due?

There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular checks let you plan resealing before leaks or damage.

Sealant on show in Charlwood’s commercial buildings

The 3 miles around Charlwood take in at least three named trading estates, business parks or retail parks. Units on sites like these change tenants and get refitted, and each refit leaves joints to seal, often in a colour the occupier specifies. Charlwood is about 50 miles from central London. The commuter belt holds a great many offices, retail parks and business parks. Multi-site occupiers here often want one sealant contractor across all their buildings.

Parks like Mansfield Business Park, 2.4 miles to the north of Charlwood, see tenants come and go, and every move-in brings joints to seal.

Charlwood is about 6 miles south-west of Alton, in Hampshire. If you are looking for commercial sealant contractors in Charlwood, we can help. 723 places across Hampshire fall within our area, Charlwood among them. Southampton is covered too, around 19 miles from Charlwood.

If you need commercial sealant contractors in SO24, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Just outside Charlwood, we also work in Monkwood (1 mile south-west), Kitwood (1 mile north-west), Gilbert Street (1 mile north-west), Ropley (2 miles west) and West Tisted (2 miles south-west). Further afield, our area takes in Basingstoke (13 miles north), Winchester (12 miles west), Havant (15 miles south), Eastleigh (15 miles south-west), Horndean (12 miles south) and Alton (6 miles north-east).

Near you in Charlwood

Other landmarks nearby include Alton Community Hospital (4.7 miles north-east). The countryside around Charlwood includes Red Hill and Shutts Copse.

Map of Charlwood © OpenStreetMap contributors
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