We deliver BS5837 tree surveys, risk assessments and reports across Preston, Lancashire and the North West.

Trees influence what you can build, how you manage risk and how insurers view a site. Great Oaks’ tree surveys for planning, safety and insurance give you clear information so you can move projects forward without guesswork.
If you need a BS5837 survey for a development, a risk assessment for an estate or a focused report for a lender, our arboriculture consultancy services can help you choose the right survey and delivers it in a format planners and stakeholders recognise.
Serving the North West
Working from Kirkham near Preston, our teams visit sites throughout Lancashire, Greater Manchester, Merseyside and the wider North West, combining on-site inspections with practical, plain English advice.
A large proportion of our survey work takes place in and around Preston and the central belt of Lancashire. Typical locations include:
On these sites we regularly complete:
If your town is not listed, we are still very likely to cover it. Tell us your postcode and the type of work required and we will confirm availability.
We can provide a free quote for tree surveys in Lancashire and across the North West.
Get in touch now:
📞07884 274693
✉️ office@greatoakstreeservices.co.uk
🌐 Contact us online
Not all of our projects are on the doorstep. Many instructions come from clients with sites across the broader region, and we regularly travel to:
In these areas we support:
We align visit dates with your programmes and key deadlines, whether that is a planning committee, a funding milestone or an exchange date.

Wherever we are working, the survey process is designed to be thorough, structured and easy to understand. Across Preston, Lancashire and the North West we offer:
For development sites we follow the full BS5837 process, from on site data collection through to constraints, impact and protection. You receive schedules, a Tree Constraints Plan, an Arboricultural Impact Assessment and an Arboricultural Method Statement or Tree Protection Plan where required, so your planning team has everything in one place.
Duty holders such as estates, schools, landlords and local authorities need a sensible and defensible inspection regime. Our surveys identify defects, rate risk and provide prioritised works lists so you can demonstrate that tree risks are being managed in a reasonable way.
Where trees are close to foundations, retaining walls or buried services, we can arrange root investigation and radar surveys to identify rooting depth and spread. This helps engineers refine designs, agree mitigation and avoid unnecessary removal of good quality trees.
For individual properties we provide concise reports that answer specific lender or insurer questions. The focus is on risk, realistic recommendations and timeframes, written in language that homeowners and non specialists can understand.
On larger estates, campuses and portfolios, we can turn one off surveys into a longer term management plan. This might include mapped data, inspection cycles and budget guidance so you can move away from reactive works and towards a planned approach.
Our survey work spans many sectors. This includes:
We are used to working around live sites, school timetables and other contractors, and can provide method statements where needed for higher risk or more regulated environments.
Choosing Great Oaks for tree surveys means you are working with a specialist arboriculture team, not a generalist surveyor.
Arboricultural expertise
Our arboriculture and tree management service sits alongside consultancy, so recommendations are rooted in day to day experience of what actually works on site.
BS5837 and planning knowledge
Our consultant is experienced in BS5837 surveys, planning support, TPO and conservation area advice, management plans and site supervision, so you get support through the full life of a project.
Recognised accreditations
Great Oaks is an ARB Approved Contractor with additional accreditations such as Constructionline Gold and SSIP, giving reassurance to larger clients and framework partners.
Family-run provider with regional reach
Established in 2018 and based in Kirkham, Lancashire, Great Oaks has grown from a local family business into a trusted provider across the North West.
Clear reporting and communication
Reports are structured so that planners, insurers and non technical stakeholders can find what they need quickly, supported by drawings and photos where these add value.
If you would like to confirm whether we can complete a survey at your location, send us a few details and we will suggest the best next steps.
It helps if you can tell us:
The site address or postcode
Why the survey is needed, for example planning, risk management, mortgage or insurance
Any important dates
Get in touch by:
We can help you to understand the trees on and around your site and provide the survey information you need to move forward with confidence. Contact us today from across the North West.

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Careers
Climbing, grounds maintenance and utility work.Climbing, grounds and utility work.
Arboricultural Association Approved Contractor.
Last minuteAvailability
Starts Monday 19 October 2026
3 days plus 1 for assessment
£9671 place
Entry requirements: Ground Based Chainsaw Operator and Tree Climbing and Aerial Rescue
Book this date, Using a Chainsaw from a Rope and HarnessOr call the training office on 01772 369694