NRPP Certified Radon Mitigation

We Protect the Homes Our Neighbors Live In.

We’re Bobby and Josh — two owners, NRPP certified, and one of us is on every job. Radon mitigation for homeowners, real estate professionals, and property investors across Massachusetts & New Hampshire. Licensed. Certified. Guaranteed.

NRPP Certified
Licensed & Insured
HIC Registered
48-Hour Scheduling
Electrician Included
Why Precision Radon Specialists
1 in 5
MA Homes Have Elevated Radon
Zone 1
Worcester County EPA Rating
48hr
Scheduling Turnaround
100%
Satisfaction Guaranteed
Call or Text Anytime
(508) 365-4647
NRPP Certified Specialists
Licensed Electrician Every Job
Post-Mitigation Test Included
Same-Day Written Report
1-Year Workmanship Warranty
Why Choose Us

Built Different. Built Better.

We built Precision Radon Specialists around one principle: every homeowner, buyer, and agent deserves a radon company they can trust completely.

01

Electrician Included. Always.

Massachusetts law requires a licensed electrician to wire every radon fan. We include this in every job — no surprise charges, no scheduling on your end. One call. Complete installation.

02

Report in Your Hands Same Day.

Every installation includes a professional post-mitigation test. Results are delivered in a clean written report — suitable for real estate disclosure, inspectors, and buyer review.

03

Closing Deadlines Are Our Problem.

We understand what a radon issue means in a real estate transaction. We build our scheduling around your deal timeline — 48-hour booking, efficient installs, same-day documentation.

Our Services

Complete Radon Solutions for Every Property.

Complex Installs

Multi-Point & Crawl Space Systems

Homes with complex foundations, mixed slabs, or crawl spaces require additional suction points or specialized encapsulation. We assess every property before quoting.

Quote on Assessment
Typically $2,200 – $3,500
Water Radon

Water Radon Mitigation

Homes with private wells can have elevated radon in the water supply. We offer aeration and point-of-entry treatment systems.

$3,500 – $8,000
Depending on system type and well configuration
Ongoing Protection

Radon Testing & Inspections

Professional continuous-monitor radon testing with results in days, not weeks — $149 standalone, complimentary with any mitigation assessment. The EPA recommends re-testing every two years.

From $150
Included in all Precision Protect Plans
Precision Protect Plans

Your System. Protected. Every Year.

Every installation includes your first year Sentinel Plan at no charge. After year one, choose the plan that best protects your home.

Guardian
$149
per year
  • Annual professional radon test
  • Test kit mailed to you
  • Results reported & explained
  • Priority scheduling
  • 10% discount on any repair
Fortress
$349
per year
  • Everything in Sentinel
  • Two inspections per year
  • Continuous radon monitor
  • Fan replacement up to $300
  • Annual water radon test
  • Transferable to new owner
  • Annual RE disclosure report
Ideal for investors and landlords. Transferable at resale.
How It Works

Simple. Fast. Professional.

From your first call to your final report — we handle everything.

01

You Reach Out

Call, text, or fill out our form — no call centers. You speak with an owner. We schedule your assessment within 48 hours.

02

We Assess Your Property

We conduct an in-person evaluation of your foundation, radon levels, and optimal system design before providing a written quote.

03

We Install Your System

Our NRPP certified team installs to EPA specifications. Our licensed electrician handles all wiring. We clean up completely.

04

Report Delivered Same Day

Your post-mitigation test is placed at installation. Results arrive in a professional written report — ready for disclosure.

Service Territory
■ EPA Zone 1 — Highest Radon Risk

Worcester & Plymouth. And Beyond.

Bobby is based in Plymouth. Josh is based in Millbury. Together we cover both counties equally — two of the highest-activity real estate markets in Massachusetts. Worcester County carries an EPA Zone 1 designation meaning average indoor radon levels meet or exceed the 4 pCi/L action guideline.

We serve all of Massachusetts and New Hampshire — and we are expanding across New England as state registrations complete. Reach out and we will confirm availability for your property.

Worcester County
EPA Zone 1 — Primary
Plymouth County
EPA Zone 2 — Primary
Middlesex County
Available
Norfolk County
Available
Bristol County
Available
Rhode Island
Available
For Real Estate Professionals

We Make Radon a Non-Issue in Your Transactions

Fast scheduling. Professional documentation. Reports your clients can share at closing with confidence.

  • 48-hour scheduling from your call
  • Post-mitigation report — closing ready
  • Direct line to ownership — always
  • Transferable service plans for listings
  • Referral program for active agents
New Construction & Builder Compliance

Passive Radon Systems for Builders

Massachusetts building code requires passive radon mitigation in new one and two-family homes in Worcester, Middlesex, and Essex counties. We work with builders on volume pricing.

Service Areas

Serving Communities Across Massachusetts & New Hampshire

Precision Radon Specialists installs radon mitigation systems throughout Massachusetts, Rhode Island, New Hampshire, Connecticut, and Maine.

Worcester, MA

Worcester County · EPA Zone 1

One of the highest radon-risk cities in Massachusetts. NRPP certified installation, 48-hour scheduling.

Plymouth, MA

Plymouth County · EPA Zone 2

Serving Plymouth and surrounding coastal communities. Fast turnaround for real estate transactions.

Framingham, MA

Middlesex County

Radon mitigation for Framingham homeowners and real estate professionals. Same-day reports.

Brockton, MA

Plymouth County

Professional radon mitigation serving Brockton and the greater South Shore region.

Shrewsbury, MA

Worcester County · EPA Zone 1

Shrewsbury sits in EPA Zone 1 territory. Radon testing and mitigation for homeowners and buyers.

Taunton, MA

Bristol County

Serving Taunton and Bristol County. Licensed electrician included on every job.

Wareham, MA

Plymouth County

Radon mitigation for Wareham homeowners. Post-mitigation test and report included.

Marlborough, MA

Middlesex County

Professional radon mitigation in Marlborough and surrounding Middlesex County communities.

Providence, RI

Rhode Island

Precision Radon Specialists serves Providence and Rhode Island. NRPP certified and fully insured.

Manchester, NH

New Hampshire

Radon mitigation available in Manchester and southern New Hampshire. Call to confirm scheduling.

Attleboro, MA

Bristol County

Serving Attleboro and the Attleboro Falls area with professional certified radon mitigation.

Southern New Hampshire

Nashua · Salem · Manchester

New Hampshire has among the highest indoor radon levels in the nation. Our NRPP certification covers NH — same team, same standard, same 48-hour scheduling.

Know the Risk

Radon Is the Second Leading Cause of Lung Cancer in the US.

It is colorless. Odorless. And present in homes across New England right now.

21,000

Deaths Per Year

The EPA estimates radon causes approximately 21,000 lung cancer deaths annually in the United States — more than drunk driving.

1 in 5

Massachusetts Homes

An estimated 650,000 homes in Massachusetts have radon levels exceeding the EPA action guideline. Worcester County is among the highest-risk areas.

4.0

pCi/L Action Level

The EPA recommends mitigation when levels reach 4.0 pCi/L. Many Worcester County homes test significantly higher. The only way to know is to test.

EPA Designation
Zone 1
Worcester County

Worcester County carries an EPA Zone 1 designation — the highest radon risk classification, indicating predicted average indoor radon levels at or above 4 pCi/L. If you own or are purchasing a home in Worcester County, radon testing is not optional. It is essential. A professionally installed mitigation system by an NRPP certified specialist eliminates the risk permanently.

Frequently Asked Questions

Everything You Need to Know About Radon Mitigation.

Straight answers from certified specialists.

What is radon and why is it dangerous?+
Radon is a naturally occurring radioactive gas that forms from the decay of uranium in soil and rock. It is colorless, odorless, and completely undetectable without testing. Radon is the second leading cause of lung cancer in the United States, responsible for approximately 21,000 deaths per year. In Massachusetts — particularly EPA Zone 1 areas like Worcester County — elevated levels are common.
How much does radon mitigation cost in Massachusetts?+
A standard sub-slab depressurization system from Precision Radon Specialists is $2,500 all-inclusive for most single-family homes. Be careful comparing quotes — lower quotes typically exclude the licensed electrician ($300-500 elsewhere), the post-mitigation test ($100-275 market rate), the written report, and any warranty. Our price includes all of it, plus your first year of the Sentinel service plan. Property-specific conditions are always itemized in writing before work begins — no surprise charges, ever. Complex installs typically range from $2,800 to $3,500.
How long does a radon mitigation installation take?+
Most standard installations are completed in a single day — typically 4 to 6 hours. We schedule within 48 hours of your call and our licensed electrician is included, so there are no delays waiting for a separate contractor.
Is radon mitigation required before selling a home in Massachusetts?+
Massachusetts law requires sellers to provide buyers with a radon warning statement and EPA radon guide. While mitigation is not legally mandated, elevated radon results commonly arise during home inspections and can delay or derail transactions. Real estate professionals routinely recommend mitigation prior to listing.
What is NRPP certification and why does it matter?+
NRPP stands for the National Radon Proficiency Program — the leading national certification body for radon professionals. Certification requires passing a comprehensive examination covering radon science, system design, EPA guidelines, and building diagnostics. It is the standard real estate agents, home inspectors, and buyers rely on when selecting a radon contractor.
What is Worcester County's radon risk level?+
Worcester County is designated EPA Zone 1 — the highest radon risk classification — indicating predicted average indoor radon levels at or above 4 pCi/L. An estimated 1 in 5 Massachusetts homes has elevated radon, and Worcester County homes are among the most likely in the state to test above the action threshold.
Will my radon levels drop immediately after installation?+
Yes. Sub-slab depressurization systems begin working immediately upon installation. Most homes see radon levels drop well below the EPA action guideline of 4 pCi/L within 24 hours. A post-mitigation test is included with every installation, with results delivered within 48 to 72 hours.
Does radon mitigation affect my home value?+
A professionally installed system is viewed as a permanent home improvement and positively influences buyer perception in high-radon markets like Worcester County. Homes with active mitigation systems and current service plans sell faster and with fewer inspection complications.
What is the Precision Protect Service Plan?+
An annual recurring service program for homes with installed mitigation systems. Every installation includes a complimentary first year. After year one, choose Guardian at $149, Sentinel at $199, or Fortress at $349 per year for inspections, testing, and system maintenance.
Do you serve areas outside of Worcester and Plymouth?+
Yes. We serve all of Massachusetts including Middlesex, Norfolk, Bristol, Essex, Barnstable, and Hampden counties, plus Rhode Island, New Hampshire, Connecticut, and Maine. Bobby is based in Plymouth. Josh is based in Millbury. Together we cover both counties equally and travel for any job that makes logistical sense.
About Us

Two Owners. One Standard. Zero Compromise.

Bobby Sullivan and Josh Deem built Precision Radon Specialists on a foundation of genuine partnership. Two markets. Two skill sets. One standard of work.

Bobby Sullivan
Owner · Plymouth, MA · NRPP Certified

Bobby brings a strategic eye and a systems-first mindset to every part of the business. He approaches every problem by understanding where it ends before deciding how to begin. He holds himself and the people around him to a high standard — not because it is required, but because it is the only way he knows how to operate.

Based in Plymouth, MA.

■ NRPP Certified Mitigation Specialist
Josh Deem
Owner · Millbury, MA · NRPP Certified

Josh is the kind of professional people trust without being told to. Reliable, grounded, and technically precise — he brings a steadiness to the field that customers feel from the moment he arrives. Millbury-built and proud of it.

Based in Millbury, MA.

■ NRPP Certified Mitigation Specialist
Get a Free Quote

Let's Protect Your Home.

Reach out and you will speak with an owner — not a call center. We respond fast and schedule within 48 hours.

Call or Text
(508) 365-4647
Email
precisionradonspecialists@gmail.com
Hours
Mon–Sat · 7AM–6PM
Service Area
Massachusetts & New Hampshire

We respond within hours. Your information is never shared.

Ready When You Are

Protect Your Home Today.

Call or text us directly. You will speak with an owner. We will get you scheduled within 48 hours.

(508) 365-4647
Call or Text — We Answer