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

Mastic sealing for building owners and managing agents in North Boarhunt, Hampshire

Mastic sealing in North Boarhunt, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.

  • Complaints coming in block by block
  • Mastic failing across several blocks on an estate
  • Patchy repairs in mismatched sealant
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Need mastic sealing in North Boarhunt?

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

What sealant work can’t fix

Not every problem is a sealant problem, and we’d rather tell you before you spend money. It won’t fix:

  • Leaks from above rather than through a joint
  • Old mastic suspected of containing asbestos, which must be tested and dealt with by a specialist first
  • Glazing that needs replacing

Not sure which it is? You can ring 01277 525 020 or email us and we will tell you honestly before you book.

What we seal

  • External wall and movement joints
  • Communal kitchens and washrooms
  • Balcony and threshold joints
  • Communal entrances and stairwells
  • Shopfronts below residential blocks
  • Window and door perimeters on blocks

Mastic sealing in North Boarhunt, done properly

Mastic Doctor has sealed joints on commercial and residential blocks since 2005. Our applicators are CSCS-carded, and the work is backed by public liability insurance. Each building we complete carries a 12-month guarantee on our workmanship. The enquiries we see most involve a mix of products and colours from past repairs and movement joints with sealant missing, across external wall and movement joints, balcony and threshold joints and communal entrances and stairwells. For commercial sealant work in North Boarhunt, you deal with one contact from quote to sign-off, whether it’s one building or several.

For buildings around smaller places like North Boarhunt, we group work so one trip covers it. Photos of each elevation help us quote accurately.

Our workmanship is guaranteed for 12 months, in North Boarhunt as everywhere else we work. If our installation lets you down in that time, we return and fix it.

Location
North Boarhunt (PO17)
Region
Hampshire
Cover
12 months on every job
Quote
A fixed quote before we start
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Planned mastic for North Boarhunt portfolios

Rainfall across the South East, North Boarhunt included, is lower than in many parts of the UK. Outside mastic still needs a dry joint and the right temperature, while the elevations that take the most sun tend to show hardened mastic first. Central London is about 62 miles from North Boarhunt. Around the capital’s commuter belt, managing agents look after many blocks close to stations and town centres; their frame mastic often ages block-wide.

Older community buildings, Church of the Holy Trinity among them, often have frames of mixed ages whose mastic varies. For agents with blocks near Portchester station, which lies south of North Boarhunt, a block-wide mastic programme deals with frames, balconies and entrances in one go. Schools and community buildings such as Newtown Soberton Infant School need frame and external mastic kept sound like any building.

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

Business premises anywhere in PO17 are within our area. Among the streets we cover are Trampers Lane and Bere Farm Lane. We also cover 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). Nearby towns on our patch 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).

Around North Boarhunt

The nearest railway station is Portchester station, about 3.3 miles south. Other landmarks nearby include Fareham Shopping Centre (3.2 miles south-west) and Portchester Castle (4.2 miles south). Not far away are Portsdown Hill and St Clair's Meadow.

Map of North Boarhunt © OpenStreetMap contributors

Why it’s worth doing now in North Boarhunt

Piecemeal repairs over the years often leave mismatched sealant. A block-wide reseal gives one product, one colour and one guarantee. Around North Boarhunt, it’s better to renew all the failing joints at once. Photos of every joint help us quote for the whole job.

What a job costs comes down to the quantity of joints, what has to come out first and the access. Call for a quote when you are ready.

Why choose Mastic Doctor in North Boarhunt

  • A Constructionline member, so easy to vet
  • Commercial sealant work since 2005
  • Workmanship guaranteed for 12 months
  • Work to your specification and the manufacturer’s guidance

See how commercial sealant jobs are priced and our accreditations.

On site: what to expect

A typical day starts with protection: masking tape along the joint edges and sheeting over anything nearby. The work itself normally takes anything from a day to a few weeks, depending on the number of buildings and joints, and we clear our waste as we work. For work around North Boarhunt, we aim to finish in one visit, so we ask for photographs and rough sizes first. That way the right products come on the day.

  1. First comes a look at the joints and, for older buildings, the asbestos records.
  2. A fixed quote covers the joints, products and order of work.
  3. We strip out the old sealant.
  4. Joint faces are cleaned, backed and resealed.
  5. Buildings are completed in turn.

Getting the site ready

  • Tell us what induction or permit system the site runs
  • Make sure the joints can be reached
  • Warn occupants and staff about the work

Ask for a quote

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, call 01277 525 020 or email the details over.

Get a price

Read more

Cost factors for mastic joints

Quotes vary with the job. It mainly depends on:

  • The total length or number of joints
  • How accessible the joints are
  • Removal of failed or old sealant
  • Location, for remote and island sites

Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote.

Sending details for a quote

A few photos plus some basic facts will normally do. It helps to include:

  • Whether the building will be occupied during the work
  • How the joints are reached, and at what height
  • The product your specification calls for
  • Asbestos survey details if the building is older

The quickest route to a quote is a few photographs and the site postcode. Upload them with the quote form, or give us a call on 01277 525 020 or email the details over if you’d rather talk the job through.

Questions about North Boarhunt

Is North Boarhunt too small for you to travel to?

No. Small places get the same service as large ones. Our area covers London and the South East counties. Send photos and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Do you work for managing agents with blocks near Portchester station?

Yes, we work for agents, landlords and housing associations with blocks of every size. Photos of each elevation help us quote accurately.

Can people stay in the building while you reseal?

Occupiers stay in the building throughout. If any flats or units need access, we’ll tell you in advance so you can arrange it with occupiers.

Do you work to architects’ specifications?

Yes. Send it with your enquiry, and we’ll price the work to it, flagging anything that needs clarifying.

Do you supply RAMS and insurance details?

We are CHAS accredited, a Constructionline member and carry public liability insurance. Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.

Is mastic sealing guaranteed?

Our workmanship carries a 12-month guarantee, backed by public liability insurance.

Can you seal joints high up on a block?

It depends on the building. How upper joints are reached is agreed before work is booked so there are no surprises.

Building owners, agents and FMs in North Boarhunt

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 North Boarhunt can sit alongside others in a wider programme.

We work for building owners and managing agents on sealant work across single buildings or whole portfolios around North Boarhunt. One quote can cover more than one site, which keeps the paperwork simple.

Surface by surface

Planned maintenance

Resealing can be scheduled alongside other planned works on a timetable you set.

Communal areas

Joints at low level in communal areas take knocks from bins, bikes and buggies, so they often need renewing sooner.

Accreditations

Trusted. Accredited. Insured.