Who does a perc test?

• <div><p>Soil testers and licensed excavators are often the <a href="https://www.angi.com/articles/who-does-perc-tests.htm">professionals you hire if you need a perc test</a>. In some cases, structural engineers will also be able to conduct the test for you. In many municipalities, you’ll need your professional on-site to dig and fill the holes with water, as well as a representative from your local building department or health department. That representative is the individual who will determine whether your test passes or fails. </p></div>

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Q: How do you build a road on a slope?

• <div><p>Building a road on a slope requires careful planning and will normally require a drainage system underneath to prevent flooding and damage to the road over time. Your professional may lengthen your road to create switchbacks if the slope directly to your home is too steep, as there are regulations for maximum road slope. The drainage system will help prevent runoff from the higher side of the slope from damaging the asphalt or concrete. Keep in mind that building a road on a slope isn&rsquo;t a good DIY project, as a lot can go wrong.</p></div>

Q: What should I do before hiring an excavation company?

• <div><p>Prior to excavation, you should prepare the dig site and call 311 before you sign anything.</p><p>To get your site ready for excavation, you should move anything in the area that isn&rsquo;t affixed to the land. You can save money on the excavation by removing hardscaping, including walkways, decks, concrete patios, and paver patios.</p><p>Before you carry out any digging, you should call 311 to confirm that there are no utility lines running through your excavation site. Skipping this step could lead to severe injury and property damage if your excavator hits a water, sewage, or gas line.</p></div>

Q: How do well drillers know where to drill?

• <div><p>Professional well contractors may use electromagnetic mapping to look for places with a high likelihood of water. Water access can vary significantly, even on the same property, so it can be difficult to know where to drill if you don&rsquo;t have specialized tools to look for water.</p></div>

Q: How long does a land survey take?

• <div><p>A land survey can take anywhere from a few hours to a month or more, depending on the size of the property, the type of survey, the property&rsquo;s accessibility and topography, and the availability of historical property records. A simple boundary survey to determine a fence line can be completed in a day while surveying 50 acres of undeveloped woodlands may take weeks or longer.</p></div>

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Verified Reviews for Land Surveying pros in Gaithersburg, MD

*The Angi rating for Land Surveying companies in Gaithersburg, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Land Surveying needs.

*The HomeAdvisor rating for Land Surveying companies in Gaithersburg, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Land Surveying needs.

Last update on November 12, 2025

Reviewed in July 2016
Very friendly, thorough and prompt service. The Chesapeake rep who surveyed my property actually recommended a cheaper alternative to water an area of my property than I had proposed! Big relief after dealing for years with rude and incompetent service from Hydro-Tech.
Chesapeake Irrigation & Lighting Inc
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Reviewed in July 2016
We communicated with Magnus at DJ Floors to get an estimate for installation of new hardwood floors in our condo. Magnus was very responsive and professional, and quickly prepared quotes for us for three different flooring options. He also visited our condo to survey the space and provide...
Dj Floors LLC
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Reviewed in May 2014
They did a good job and gave me a comprehensive quote on different services. I landed up having some really substantial issues with my house so I couldn't obviously do everything all at once. They divided the services into what was immediate and long-term; they were great about that. I ended up...
Aquaguard Waterproofing
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Reviewed in July 2013
After surveying the work the plumber made a couple of recommendations, when the first option did not work out he quickly went to the second option and took care of the repair. He also made a cost savings recommendation to repair another faucet in my home. I will definitely call Benjamin...
Benjamin Franklin Plumbing
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Reviewed in March 2013
I provided the paint and the painters arrived and worked until they finished the hallway, stairway, and landing of colonial house. We were very pleased with the work and the price. And they were able to reach the very high places that are difficult to reach without the right equipment.
Definition Painting Services, Inc.
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Reviewed in September 2012
Called before arrival, surveyed areas, moved truck to minimize noise and disruptions. Very courteous and professional. Efficient but not hurried. Made sure we were satisfied, careful and attentive to be thorough.
CleanSource Indoor Environmental Cleaners
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Reviewed in December 2008
I am looking into other land line providers in DC. I have been with Verizon for a long time. It is not worth the hassle.
Verizon
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Find Land surveyors in Gaithersburg

AV Surveying

4.29(

)

•Approved Pro

AV Surveying

4.29(

)

•Approved Pro

Customers say: Terrific value

88 local quotes requested

16 years of experience

We are a reputable architectural design company that specializes in a variety of interior design and spatial planning projects. We take pride in our ability to exceed expectations in all aspects of business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Scheduling and receipt of the draft survey took longer than expected. I had to reach out to the company on both matters after accepting their proposal. The surveyor was professional. Answered my questions and placed clear markers on my property boundary pins, a requirement of my HOA for a home improvement project."

Tracey A on July 2025

"Scheduling and receipt of the draft survey took longer than expected. I had to reach out to the company on both matters after accepting their proposal. The surveyor was professional. Answered my questions and placed clear markers on my property boundary pins, a requirement of my HOA for a home improvement project."

Tracey A on July 2025

WL Meekins Inc Land Surveyors

4.89(

)

•Approved Pro

WL Meekins Inc Land Surveyors

4.89(

)

•Approved Pro

Customers say: Super punctual

Recommended by 95% of Angi customers

171 local quotes requested

We have been providing land surveying services to the Maryland and Washington D.C. area since 1951 and specialize in residential site grading plans, boundary surveys, house location surveys, civil engineering services, site plans, and more.

"Great work"

Winstone N on June 2023

"Great work"

Winstone N on June 2023

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Need a pro for your land surveying project in Gaithersburg, MD?

Land Surveying

Wood Fence Installation

Tree Removal Service

Verified Reviews for Land Surveying pros in Gaithersburg, MD

Find Land surveyors in Gaithersburg

AV Surveying

AV Surveying

WL Meekins Inc Land Surveyors

WL Meekins Inc Land Surveyors

Fujin Productions

Fujin Productions

Urbana Surveys, LLC

Urbana Surveys, LLC

Toj's General Contracting

Toj's General Contracting

Rinker Design Associates, P.C.

Rinker Design Associates, P.C.

Zee Fine Gardening

Zee Fine Gardening

lightning ventures inc.

lightning ventures inc.

BTLane Contracting

BTLane Contracting

Surveyors Development and Associates LLC

Surveyors Development and Associates LLC

The Gaithersburg, MD homeowners’ guide to land surveying services

How Much Does Site Preparation Cost? [2025 Data]

How Much Does a Land Survey Cost? [2025 Data]

How Much Does It Cost to Clear Land? [2025 Data]

Land Survey vs. Plot Plan: What’s the Difference?

What Is a Property Line and Why Does It Matter?

How to Find Property Lines for a Fence: 7 Easy Ways

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