For Estate Agents and Landlords

The partner your
portfolio deserves.

Compliance handled. Maintenance coordinated. Tenants satisfied. All on a single account with one invoice at the end of the month.

35+
Years in Business
1,346
Projects Completed
12
Services, One Invoice
Portfolio Clients
40+
Active agency partnerships
Why Agencies Choose Us

Built for the demands of property management

One Invoice, All Jobs
Every job across your portfolio on a single monthly invoice. No tracking multiple contractors, no reconciling multiple accounts.
Full Compliance Cover
EPC, gas safety, EICR, fire alarms — every legal certification your portfolio needs, tracked and renewed automatically.
Dedicated Account Manager
One person at All In One knows your portfolio inside out. All jobs go through them, so nothing falls through the cracks.
Fast Turnarounds
End-of-tenancy turnarounds completed within agreed timelines to minimise void periods and maximise rental income.
Transparent Pricing
Fixed pricing for all standard jobs, agreed in advance. No call-out inflation, no emergency surcharges on routine work.
Always Reachable
Phone, email or WhatsApp. Emergency line available for urgent issues at any of your managed properties around the clock.
Compliance and Certification

Every legal requirement covered

Your tenants are protected.
Your portfolio is legal.

Keeping up with compliance deadlines across a portfolio of properties is a full-time job. We take it off your plate entirely. We track renewal dates, book engineers, issue certificates and flag anything that needs attention — before it becomes a liability.

All work is carried out by Gas Safe registered and NAPIT accredited engineers. Every certificate is issued to you digitally, same day.

Request a compliance review
EPC Certificates
Energy performance assessments with same-week turnaround and improvement recommendations.
Gas Safety Checks
Annual CP12 certificates by Gas Safe engineers. Same-day availability across London.
EICR Inspections
Electrical installation condition reports required every 5 years for all rental properties.
Fire Alarm Services
BS5839 compliant installation, annual servicing and full certification issued same day.
End of Tenancy
Full turnaround service: clean, decorate, repair, certify. Ready for the next tenant on schedule.
Quick Compliance Check

Is your portfolio
fully covered?

Check in 30 seconds

Answer five questions and see exactly where your portfolio stands.

Do all properties have valid EPC certificates?
EPC certificates are a legal requirement for all rental properties.We can arrange yours today
Are all gas safety certificates current?
Annual gas safety checks are a legal requirement for all landlords.Book a Gas Safe inspection
Are all fire alarms serviced and certified?
Unserviced alarms put tenants at risk and landlords at legal liability.Book fire alarm servicing
Are all EICR electrical reports up to date?
EICRs are required every 5 years for all rental properties.Arrange an EICR inspection
Are all end-of-tenancy inspections logged this year?
Protect deposit deductions with a professional inspection report.Book an inspection

We can handle everything you are missing.

Our team covers all of the above under one roof. One call, one invoice, full compliance.

Get a Compliance Review
Partner Programme

Join London's most trusted
property maintenance network

Partner Agency Agency partnership
How It Works

One call covers
your entire portfolio.

Agency partners get a dedicated account manager, priority scheduling, monthly consolidated invoicing and a single point of contact for everything from a broken boiler to a full refurbishment.

  • Dedicated account manager for your agency
  • Priority scheduling on all call-outs
  • Monthly consolidated invoice across all properties
  • Compliance calendar managed on your behalf
  • WhatsApp line direct to your account manager
  • No minimum portfolio size to join
Enquire About Partnership Call 020 3397 9011
Agency Reviews

What our agency partners say

"As a letting agency we need contractors who show up, do the work and do not create more problems. All In One has been our go-to for two years and never let us down."

S
Sarah T.
Lettings Manager, North London

"We use All In One across our full Harrow portfolio. They handle everything: certificates, maintenance, end-of-tenancy turnarounds. One call is genuinely all it takes."

D
David K.
Landlord, 12-property portfolio

"The consolidated invoicing alone saves us three hours a month in admin. Having one team across all our managed properties is transformational for a small agency like ours."

A
Amanda R.
Director, South London Lettings
Common Questions

What agencies ask us

No. We work with individual landlords managing a single property as well as agencies managing hundreds. There is no minimum. If you need reliable property maintenance and compliance cover, we can help.
Standard end-of-tenancy turnarounds are completed within 3 to 5 working days, depending on scope. For partner agencies we offer priority scheduling to reduce void periods. We can discuss agreed SLAs for your portfolio as part of the partnership arrangement.
Yes. For partner agencies we maintain a compliance calendar for your portfolio, tracking EPC, gas safety, EICR and fire alarm renewal dates. We contact you ahead of each expiry, arrange the work and deliver the certificate without you having to remember to chase.
Partner agencies receive a single consolidated invoice at the end of each month covering all jobs completed across the portfolio. Individual job confirmations and completion reports are provided in real time. Payment terms are 30 days.
Yes. We cover all of Greater London and surrounding areas. Our teams operate across Central, North, South, East and West London. For portfolio partners with properties spread across the city, we coordinate scheduling to minimise travel and keep costs down.
Start the Conversation

Let us take property
maintenance off your plate.

Call us, email us or fill in the form and we will get back to you within 4 working hours to discuss your portfolio and how we can help.

Enquire About Partnership Call 020 3397 9011