Whitsbury mastic sealing
Mastic sealing for building owners, managing agents and housing associations throughout Whitsbury and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.
- No planned programme for sealant
- Open joints in brickwork or panels
- Communal area joints that look neglected
Mastic sealing in Whitsbury
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Owners, agents and contractors
Main contractors use us as their sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules, and our applicators hold CSCS cards.
Hospitality, education, healthcare, office and retail clients come to us directly as well. We plan around the way the building is used, so the building keeps working while we do.
How we handle mastic sealing in Whitsbury
Owners and agents usually inherit a building’s mastic rather than choose it and it slowly wears out: it sits round windows and doors, along external joints and through communal areas. When it hardens, splits or pulls away, water and draughts follow along with complaints. Most enquiries involve water getting in round frames after rain and window mastic that has split and shrunk, across external wall and movement joints, shopfronts below residential blocks and balcony and threshold joints. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Whitsbury, preparation and product choice get the time they need.
For buildings around smaller places like Whitsbury, we group work so one trip covers it. Send photos of the frames and joints and we will give a fixed quote.
A 12-month guarantee applies to all our work in Hampshire. Should something we installed fail, give us a call on 01277 525 020 or email us and we will come back to it.
- Location
- Whitsbury (SP6)
- Wider area
- Hampshire
- Cover
- A 12-month guarantee
- Price
- Quoted before any work starts
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Your questions answered
Is Whitsbury too small for you to travel to?
Not at all. Whitsbury is within our area. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.
Can one quote cover a number of our buildings near Whitsbury?
Yes. Portfolio-wide programmes are a regular request. We can phase the programme to suit your budgets and notice periods.
Do you seal on top of existing sealant?
No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.
How long will the new sealant last?
It depends on movement, UV and weather, cleaning, traffic and the product. Sealant joints are maintenance items, so inspect them regularly.
What paperwork can you provide?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. We are CHAS accredited and a Constructionline member.
How long does a job like this take?
It depends on the scope, though a typical visit normally takes anything from a day to a few weeks, depending on the number of buildings and joints. Larger or phased jobs take longer, and we will give you a timescale with the quote.
Can weather delay the job?
For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.
How the job changes by surface
Planned maintenance
Resealing can be scheduled alongside other planned works, building by building.
External movement joints
Movement joints are cleaned out, backed with rod and resealed with a sealant of the right movement class.
What affects the price in Whitsbury
We price every job individually. The main factors are:
- Phasing around occupants
- Removal of failed or old sealant
- Location, for remote and island sites
- Backing rod, priming and other preparation
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.
Before you send an enquiry
A good diagnosis starts with the right details. Tell us:
- What the building is and how it’s used
- How the joints are reached, and at what height
- When you need the work done
- The site address and postcode
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, call the office on 01277 525 020 or email a schedule or drawings.
General trades versus a specialist
General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class.
Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
Diagnose, treat, sign off
We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Jobs in and around smaller places like Whitsbury are normally planned as a single visit, so photographs and measurements up front really help. That way the right products come on the day.
- We inspect each building and record the joints that have failed.
- The quote is fixed and split as suits you.
- We agree the programme and dates with you.
- Failed sealant is removed and the faces prepared.
- Joints are resealed and tooled.
- We check the finished work and confirm the guarantee.
Preparing the site
- Point out any areas we must not close
- Make sure the joints can be reached
- Share your working hours and any access restrictions
Getting a fixed quote
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price the work to it. For smaller jobs, photographs and a description will do.
Related advice
For owners and agents in Whitsbury
Whitsbury is in the South East, one of the UK’s drier regions. Outside work still depends on dry joints, while the elevations that take the most sun tend to show hardened mastic first.
Trustees of buildings like Church of St Leonard can bring frame and external mastic into a planned maintenance list. For owners of several units at places like Sandleheath Industrial Estate (2.7 miles south of Whitsbury), one programme can deal with frame and external mastic across the lot. Historic properties like Breamore House (to the east of Whitsbury) show the age of some local stock, where frame mastic must suit soft brick or stone.
Whitsbury is in Hampshire. Any commercial site in Whitsbury is covered, whether it’s a single job or part of a planned programme. Whitsbury is one of 723 places we cover in Hampshire for mastic joints. There’s a separate page for Southampton, about 19 miles away.
We cover the SP6 postcode districts for mastic joints. We also cover Rockbourne (1 mile south-west), Damerham (2 miles south-west), Sandleheath (3 miles south), Ashford (3 miles south) and Alderholt (4 miles south) for mastic joints. Further afield, our area takes in Totton (14 miles east), Romsey (15 miles east), Ringwood (9 miles south), Fordingbridge (3 miles south), Eling (15 miles east) and St Leonards (10 miles south).
Landmarks near Whitsbury
Recent enquiries here include premises near The Cart Wheel Public House, among other places. Nearby you will also find Fordingbridge Museum (3.4 miles south-east) and Salisbury District Hospital (5.2 miles north).
What happens if it’s left?
Piecemeal repairs over the years often leave mismatched sealant. A block-wide reseal gives one product, one colour and one guarantee and one 12-month guarantee. Around Whitsbury, it’s better to renew all the failing joints at once. Photos of every joint help us quote for the whole job.
Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.
Why us?
- Colour agreed before work starts
- One phone line for London, the South East and Scotland
- Fully insured
- Work to your specification and the manufacturer’s guidance
Take a look at how commercial sealant jobs are priced and our accreditations.