National Safety Inspections Ltd (NSI) are a national multi-ESTAS-award winning electrical testing company. We have won "best in sector" for electrical services 3 years in a row, showcasing our excellence in customer service and satisfaction levels. At present, we successfully complete approx 15,000 certificates a year across 350+ letting agents.

Our network of electricians stretch across the entirety of England and are all directly employed. This is to ensure whether an engineer from Plymouth or Newcastle tests a property, your testing outcome remains consistent.

The services NSI specialise in are: 



- Smoke detector testing

- SAFE Certified (NSI's trademarked annual "Safety Assessment of Fire & Electrics")


We understand time is valuable, therefore all process and systems have been created for YOU. Hassle has been removed from booking in jobs, contacting tenants, chasing updates, and chasing certs; we do all of this and more for you. Let us show you why we're the nations most trusted and respected electrical testing specialist.

Problems we solve for agents

- Honest, trustworthy and transparent service

- National coverage with local electricians

- Daily and weekly auto-email notifications of job updates 

- 24/7 online customer portal to access all certificates and invoices

- Employed electricians for consistency

- Dedicated bookings and account management teams to ensure all questions are answered quickly


Text Reviews (57)

Search Reviews
Write a review
Mandy Edwards Previous reviews Jackson Property

Liam Savings has been my contact, who has been quick to easy any queries, great chap.


Anastasia Sherrin Martin and Co

Have been dealing with Lewis who has been very proactive and friendly, informed us of the new services and special discounts of the company, as well as answered our questions on safety standards.

Lonnie Webb Winkworth

outstanding service

Rachel Ireland Robert Powell Residential Lettings Ltd


Mike White Greg James Estate Agents

Would Recommend

Luke Ridley Previous reviews National Home Moves

Always helpful, efficient and always a quick turn around.

Good value for money

Reeds Rains Reeds Rains Estate Agents

Great, efficient company to deal with.

Luke Smith Tattershalls

Extremely Happy

Amy Langdon Moorfields Estate Agents

Very Impressed

Emily Zaar EasyEPC

5 Star

Video Reviews (0)

Leave a video review