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

Commercial Sealant Contractors in North Boarhunt

Commercial sealant contractors in North Boarhunt, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.

  • Greasy, split joints in a kitchen or tea point
  • Wall and floor joints that have lost their seal
  • Messy, uneven beads from earlier work that let the building down
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
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS & Constructionline
£5m public liability

Commercial sealant contractors in North Boarhunt

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

FAQs: North Boarhunt

Can you supply sealant in our brand colour for a site in North Boarhunt?

Yes. Colour matching to frames, cladding, stone and shop-fit finishes is a regular part of the work. The quote lists the colours the product is made in.

Is a smaller place like North Boarhunt outside your area?

Not at all: smaller places are covered as well as towns. London and every South East county are within our area. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.

Will your applicators have CSCS cards?

Yes. Should the site need card details in advance, tell us and we will confirm them with the quote.

Do you seal on top of existing sealant?

No, never. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.

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.

Who decides which product is used?

If the job is specified, we follow the specification. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.

Do you work directly for building managers?

Yes. A large share of our work comes through facilities managers, managing agents and landlords. Tell us how you issue work and we’ll fit in.

About our commercial sealant contractors in North Boarhunt

Inside a commercial building, sealant does a lot of quiet work: around sanitaryware, along worktops and splashbacks, at window boards, partition heads and floor junctions. Outside, it closes facade joints, frame perimeters and movement joints against the weather. We deal with internal and external sealant joints alike. We work on window and door perimeters, external facade joints and washrooms and tea points, and the failures we are asked to look at most are sanitary sealant that has gone black and patchy and smeared sealant across finishes from a rushed job. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in North Boarhunt, that means joint design, primers and backing rod as standard.

Multi-site clients with buildings in and around North Boarhunt can put several sites on one programme, with one quote format and one point of contact.

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

Every job is signed off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.

Place
North Boarhunt (PO17)
Wider area
Hampshire
Cover
12 months on our workmanship
Price
Fixed quote, scope in writing
Telephone
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

From enquiry to sign-off

At the end of each section, we remove the tape, clean down and inspect every joint, ready for your sign-off. Where the sealant needs time to cure before use, we tell you and sign the area. If others near North Boarhunt need work, visits can be combined, which keeps travel down. A fixed quote is given before anything starts.

  1. Site photographs, drawings or a visit tell us what’s there and how it has failed.
  2. You get a fixed quote covering removal, preparation and the new sealant.
  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. Backing goes in, the new sealant is laid and tooled, and the area is left neat.
  6. Completed areas are signed off with you under our 12-month guarantee.

Preparing the site

  • Make sure the joints can be reached
  • Tell us what induction or permit system the site runs
  • Point out parking and an unloading spot

Quotes

Photos, drawings or a schedule of the joints are often enough for a fixed quote. Where a site visit makes more sense, we’ll arrange one.

Ask for a quote

Related advice

What sets the cost

To price the job, we consider:

  • Which sealant the job calls for
  • Whether the work must be split into stages
  • Travel to remote or island sites
  • The size and state of each joint

Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote, and you’ll have a fixed figure to work with.

What to include in your enquiry

We can often quote from photographs and a few details. It helps to include:

  • Anything awkward about access or site hours
  • Any specification or named product
  • Rough lengths or quantities, or drawings if you have them
  • When you need the work done

Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, speak to us on 01277 525 020 or use the quote form.

Doing it in-house

Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.

Frontages, fit-outs and joints in North Boarhunt

Central London is about 62 miles from North Boarhunt. The South East around the capital has large numbers of business parks, offices and retail centres, especially around the motorway corridors. Occupiers with several premises in the region tend to prefer one contractor and one point of contact. Rainfall across the South East, North Boarhunt included, is lower than in many parts of the UK. That helps, but frost and condensation on glass and coated frames still stop outside sealing on some winter mornings.

A business with units at Spurlings Industrial Estate and Fareham Industrial Park needn’t use two contractors for its sealant. Shops and cafés around stations like Portchester station, 3.3 miles south of North Boarhunt, trade from early, so work is timed around them.

North Boarhunt is about 4 miles north-east of Fareham, in Hampshire. North Boarhunt sits inside our coverage, with the same fixed quotes and 12-month guarantee as everywhere else. North Boarhunt is one of 723 places we cover in Hampshire. We also cover Portsmouth, around 7 miles from North Boarhunt.

We take on sealant joints across the PO17 postcode area. Streets here include Trampers Lane and Bere Farm Lane. Sites close to North Boarhunt are covered too, including Hundred Acres (1 mile north-west), Wickham Common (1 mile west), Boarhunt (2 miles south), Crockerhill (2 miles south-west) and Southwick (2 miles south-east). Bigger towns within reach include Winchester (14 miles north-west), Gosport (6 miles south), Havant (7 miles east), Eastleigh (10 miles north-west), Fareham (4 miles south-west) and Horndean (6 miles east).

Near you in North Boarhunt

North Boarhunt’s nearest station is Portchester station, roughly 3.3 miles south of the centre. Other landmarks nearby include Fareham Shopping Centre (3.2 miles south-west) and Portchester Castle (4.2 miles south). For a walk, there’s Portsdown Hill and St Clair's Meadow.

Map of North Boarhunt © OpenStreetMap contributors

What the job involves on each surface

Movement joints in walls and floors

Brickwork, blockwork and floor slabs all have movement joints that need a flexible seal. When the seal fails, debris gets in and the joint stops working. The new sealant is chosen for the movement and, on floors, the traffic.

Window and door perimeters

Inside, cracked sealant around frames and window boards is common. We use a paintable product where decorating follows and a silicone where it doesn’t, in a shade that suits the frame.

Do you need commercial sealant contractors in North Boarhunt?

If sealant tears through its centre, it has failed cohesively. Usually the movement was too much for the sealant chosen because the bead was too thin, the joint over-stretched or the movement class wrong. The same product in the same joint tends to fail the same way.

Clients usually get in touch after noticing something like this:

  • Layers of sealant, all of them failing
  • Greasy, split joints in a kitchen or tea point
  • Sanitary sealant that has gone black and patchy
  • Water staining near frames, panels or ceilings

On estates like Spurlings Industrial Estate (2.4 miles south of North Boarhunt), the office and welfare end of each unit has its own sealant to maintain.

Before you book anyone

  • Who will actually carry out the work
  • Whether primer will be used where the manufacturer specifies it
  • Their public liability cover
  • How long is the guarantee, and what does it include?

How to choose a sealant contractor

Leave it or put it right?

It can be tempting to hold sealant work back until the next refurbishment. That’s reasonable for internal joints that are just tired-looking, but a joint letting water in now keeps doing damage until the refurb arrives. We can seal the urgent joints now and leave the rest for the programme. Around North Boarhunt, it’s better to renew all the failing joints at once. Send photographs of each area and we’ll quote for the lot.

A quote for sealant joints depends on how many there are, their condition and the access, plus any specification you are working to. Ask us for a fixed quote.

What you get with us

  • CHAS accredited contractor
  • Failed material removed, not covered up
  • Constructionline member
  • Over 20 years of commercial sealing

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

Accreditations

Trusted. Accredited. Insured.